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...working product, so your energy can stay on clean code, reliable architecture, and smooth performance. The app has to launch on both iOS and Android. I’m open to the cross-platform stack that best suits the job—Flutter, React Native, Kotlin Multiplatform, or another modern framework—as long as it delivers native-level speed and a maintainable codebase. I’ll supply detailed feature requirements, user flows, and wireframes once we start, and I value your technical suggestions for optimising UX, state management, and third-party integrations. Deliverables will include: • A single, shared codebase targeting the latest stable versions of iOS and Android • Build configurations, signing instructions, and store-ready release builds • Cl...

...web developer to help me online my website built with CodeIgniter 4 using Hostinger (Shared Hosting/VPS). The website needs to be fully accessible and optimized for all devices, including Android, iOS, smartphones, tablets, and laptops. ​ Key Responsibilities: ​- Deploy the CI4 application from the local environment to Hostinger. ​- Configure the database (MySQL) and environment settings (.env). ​- Set up SSL (HTTPS) and ensure the Public folder is correctly configured. ​- Responsive Optimization: Perform a thorough check and fix any UI/UX issues to ensure the site is 100% responsive on Chrome/Safari (Android & iOS), tablets, and all laptop screen sizes. ​Requirements: - Proven experience with CodeIgniter 4 and Hostinger. ​- Strong skills in CSS/Bootstrap/Tailwind for...

We’re looking for a Finland-based freelance developer! Looking for someone experienced in Java and comfortable working with AWS cloud environments to help us maintain and improve our systems. What we need: Strong Java development skills Hands-on experience with AWS (deployment, monitoring, maintenance) Ability to troubleshoot, optimize, and keep systems running smoothly Good communication and ability to work independently Nice to have: Experience with cloud architecture and scalability Familiarity with CI/CD pipelines This is a freelance/contract role with flexible hours. If you’re interested or know someone who might be a great fit, feel free to reach out!

This is full time(8 hours/day) Or Part time ( 6 hours/day) job. Don't apply without a portfolio. I need a Unity expert to turn my concept into fully-playable build for both iOS and Android. Your main focus will be building the core gameplay loop, implementing level progression and polishing the overall player experience so it runs fluidly on current mid-range phones. I already have the mechanics drafted out and a style guide for the 3D look; you’ll translate these into functional scenes, integrate mobile-friendly controls and optimise for performance. If you have shipped mobile titles in Unity—especially puzzle or strategy games with 3D send the links

...our existing HERM web tool to phones and tablets using FlutterFlow and have already mapped everything out for a fast, predictable build. You’ll start with the finished UI (five core screens) plus a 7-Day Step-by-Step Build Workflow Plan I prepared—page-by-page instructions that outline components, states, and assets so you can focus strictly on clean execution. Key scope • Platforms: iOS and Android, optimised for both mobile and tablet form factors. • Core UI: mirrors the current HERM web application. • Extra features to integrate: user authentication, data syncing, and any other items marked in the Document Index. • Multilanguage layer: English, Spanish and Portuguese (Brazil) and keeping the architecture ready for additional locales. ...

Home Essentials App (4 Onboarding Screens) Project Overview I am seeking a creative UI/UX designer to craft four high-impact onboarding screens for a new home essentials and smart appliances app. The app is designed for both iOS and Android, aiming to redefine how users interact with their living spaces through technology and style. The Creative Vision I want to move away from the typical "minimalist/pale" look of home apps. The direction is bold, colorful, and vibrant. Think of a "pop of color" in a modern home—use fresh gradients, energetic compositions, and movement to make home management feel exciting rather than like a chore. The brand personality is lively, upbeat, and modern. Scope of Work Design 4 Unique Screens: Fully compliant with Apple Human In...

...call) Implement clean, responsive UI/UX based on provided designs. Optimize app performance and ensure scalability for high user traffic. Collaborate with product and backend teams to ship features quickly. Use AI-assisted development tools to improve productivity and code quality. Maintain high-quality, maintainable, and scalable code. Required Skills Strong experience in mobile app development (Android / iOS). Proven experience building real-time messaging systems. Strong understanding of scalable architecture and performance optimization. Experience implementing pixel-perfect UI/UX designs. Familiarity with AI-assisted coding tools (e.g., GitHub Copilot, ChatGPT, Cursor, etc.). Good knowledge of API integrations and backend communication. Preferred Experience Experience work...

...call) Implement clean, responsive UI/UX based on provided designs. Optimize app performance and ensure scalability for high user traffic. Collaborate with product and backend teams to ship features quickly. Use AI-assisted development tools to improve productivity and code quality. Maintain high-quality, maintainable, and scalable code. Required Skills Strong experience in mobile app development (Android / iOS). Proven experience building real-time messaging systems. Strong understanding of scalable architecture and performance optimization. Experience implementing pixel-perfect UI/UX designs. Familiarity with AI-assisted coding tools (e.g., GitHub Copilot, ChatGPT, Cursor, etc.). Good knowledge of API integrations and backend communication. Preferred Experience Experience work...

I’m commissioning a full-stack Android application dedicated to house rentals. If you have already built a classified app—especially one covering real-estate or rentals—your prior experience will be a strong advantage because I’d like to move quickly and build on proven patterns. Core scope The app must let users browse and pinpoint available homes through an intuitive search and filter flow. Every renter or landlord needs a secure profile backed by email, phone, or social sign-in, and they must be able to exchange messages inside the app without sharing personal contact details. Enhanced experience Listings should appear on an interactive Google Maps view so location becomes immediately clear. I also want integrated payment processing for reservation f...

...tracking Handle permissions (location), reconnects, and app resume App reliability Clean state management Proper error handling No crashes on reload Works reliably on both Android and iOS Tech Stack React Native (Expo) Supabase (auth, database, storage, realtime) TypeScript preferred Backend Constraints Backend is already defined and must not be redesigned You will be provided with: SQL schema RPC functions (e.g. assign/unassign logic) Views for assignment data Storage structure for uploads You must follow the existing architecture exactly Deployment Requirements You are responsible for preparing the app for release: Android Build APK/AAB Prepare for Google Play submission iOS Build archive Upload via TestFlight Prepare for App Store submission Payment Fixed price for dr...

I’m Erwin, 34, and I want to bring my idea to life as a native Android app. Right now the concept is open, so I’ll lean on your expertise to shape the feature set and interface while keeping the build clean, fast, and future-proof. What I need • Collaborate with me to refine the core idea and user flow. • Design a simple, modern UI that follows Google Material Design guidelines. • Develop the full Android application, including any required API calls or local data storage. • Deliver the complete, well-documented source code and a release-ready APK. Please include • Links to Android apps you’ve developed. • Your preferred tech stack (Kotlin, Java, Flutter, etc.). • Estimated timeline and any questio...

...estadísticos como: - Modelos de Poisson - Simulación Monte Carlo (gran escala) - Análisis Bayesiano - Machine Learning (Auto-ML) - Value Betting (detección de valor esperado positivo) El objetivo es construir un sistema profesional, modular y altamente optimizado que pueda competir con herramientas de nivel institucional. --- ### Tecnologías actuales - Python - Streamlit (frontend principal) - SQLite (base de datos) - APIs deportivas (MLB Stats API, Odds API, etc.) - Estructura modular por deporte --- ### Lo que necesito Busco un desarrollador con experiencia REAL en: - Arquitectura de software en Python (nivel avanzado) - Optimización de código y refactorización - Machine Learning / Data Science (preferible) - Integr...

I have already built a fully-working piece of software on the Lovable no-code platform and now I want the same experience packaged as an Android application that I can sideload in APK form. All existing capabilities—user authentication, on-device data storage, and the real-time updates my current users rely on—must be carried over exactly as they behave today. The visuals should feel identical to what I have now, so please replicate the current Lovable UI rather than redesigning or defaulting to generic Android widgets. Because the app will operate as a completely standalone install, no third-party or internal APIs have to be wired in beyond what Lovable already handles behind the scenes. Deliverable: a production-ready, signed APK (and its source) that inst...

I need an experienced Unity developer to build a top-down 2D shooter game for iOS, Android, and Web (HTML5/WebGL). GAME FEATURES: • Top-down view, wave survival gameplay • Virtual joystick controls (mobile) + WASD/keyboard (PC) • 4 weapons: AK-47, AWP, MP5, Deagle • 4 enemy types: Normal, Fast, Heavy, Boss (every 5th wave) • Health & armor system • Pickup system (health, armor, ammo) • Score, kill counter, high score • Sound effects • Character skin selection (7 colors) DELIVERABLES: • iOS build (.ipa) for App Store • Android build (.aab) for Google Play • Web build (HTML5) • Full source code I already have a working HTML5 prototype that I can share as reference. Looking for milestone-based payment: proto...

Build a Mobile App Like Quittr (Full Requirements) Project Overview I want to build a modern mobile app (Android + iOS) similar to Quittr. The goal of the app is to help users: Break bad habits Track progress (daily streaks) Stay motivated Improve discipline and focus This app should be: Clean UI (modern design) Fast and smooth Scalable for future updates Core Features Required 1. User Authentication Sign up (Email / Google / Apple) Login / Logout Forgot password User profile (name, photo, goals) 2. Dashboard (Main Screen) This is the most important screen. It should show: Current streak (days) Progress graph Daily check-in button Motivation message Similar to Quittr dashboard where users track streaks and progress visually 3. Habit / Streak Tracking System Daily check...

...to coordinate in the left upper corner of a phone must always win be selected . • The original “group” feature can be left out. Critical visual polish The three hallmark animations must look and behave exactly as in Chwazi: • Circle Selection Animation • Finger Detection Animation • Winner Announcement Animation Audio & haptics Use the exact same selection and winner sounds the Android version employs, matched in volume and timing, plus identical vibration feedback. Platform & delivery This is strictly an iOS build. Please supply a TestFlight link for hands-on testing and the full Xcode project so I can archive future builds myself. I’m open to Swift, Flutter, React Native—whatever lets you replicate the experi...

I am developing a Java-based billing system and my immediate need is rock-solid payment processing. Your task is twofold: first, build the core payment module in clean, well-structured Java; second, document the work in a clear, professional report. Scope of the build The application is centred on secure, reliable payment handling—think card transactions, error recovery, and accurate balance updates. While payment processing is the top priority, a design that leaves room for future add-ons such as invoice generation or basic customer records would be ideal. I will supply detailed specs, UI sketches, and any gateway credentials once we get started. Report requirements Alongside the code, I need a concise technical report that explains the overall architecture, key clas...

...their phones, so I need a dedicated Android application focused on online ordering for my chicken shop. Core functions I must see working: • Menu browsing with clear pictures, prices and daily specials. • Fully customizable orders so customers can pick pieces, sides and sauces the way they like. • Scheduled pickups that let them choose a convenient collection time before checkout. A clean, swipe-friendly interface is important—my crowd is hungry, not tech-savvy—so the flow from menu to payment has to be fast and obvious. I’ll supply brand colours, product photos and menu data; you turn that into a polished APK plus source code I can build on later. Please let me know the tools or libraries you plan to use (Kotlin, Jetpack Compose, Flutter f...

I need a carpooling app developed for both iOS and Android platforms. The app should include: User Registration and Login Ride Booking and Scheduling Payment Gateway Integration GPS and Real-Time Tracking for Both Drivers and Passengers Ideal Skills and Experience: - Mobile app development for iOS and Android - Experience with user authentication and payment integrations - Expertise in implementing GPS and real-time tracking features - Strong UI/UX design skills for intuitive user experience Looking for a candidate with a proven track record in delivering similar apps.

...book, and manage services with as little friction as possible. To bring the concept to life I need a UI/UX designer who is comfortable crafting clean, minimalist interfaces that still feel inviting and human. Here is what I’m after: • A full set of high-fidelity screens covering the main flows—onboarding, service browsing, booking, payment, and profile management—designed for common iOS and Android breakpoints. • A lightweight design system that includes the color palette, typography scale, iconography, and component states so developers have a single source of truth. • An interactive prototype (Figma or Adobe XD) that demonstrates transitions and micro-interactions, ready for stakeholder review and developer hand-off. • Attention to ...

My website and its iOS- and Android-based mobile app already work well; what they lack is a modern, eye-catching layout that instantly engages users and keeps the experience consistent across all screens. Here’s what I need: • A full layout redesign for both the responsive website and the native apps, paying special attention to navigation flow, visual hierarchy, and intuitive gestures. • High-fidelity mock-ups and interactive prototypes in Figma (Sketch or Adobe XD are fine if you prefer) that clearly show each state and breakpoint. • A hand-off package with layered design files, exported assets, and a concise style guide so my development team can implement everything smoothly. Clean, readable UI, ample whitespace, and bold yet balanced visuals are...

Android and iOS app creation for muslim matrimony app similar to More details: What is the primary purpose of the app? Its about muslim matrimony app similar to Which core features are essential for your matrimony app? User profiles, Matchmaking algorithm, Chat functionality What kind of user profiles do you want to include? This question was skipped by the user

Je recherche une équipe expérimentée (Flutter + IA + UX) pour développer , une application éducative inclusive pour enfants (TSA, TND, neurotypiques). Objectif Créer une application mobile iOS et Android publiée sur les stores (App Store + Google Play) dès la première version (MVP), multilingue (10 langues), avec : IA adaptative (niveau, rythme, difficulté) Jeux éducatifs type Montessori Module AAC (pictogrammes + TTS) Mode offline partiel (~60%) Tableau de bord + export PDF Accessibilité (RGPD, COPPA) Stack technique obligatoire Flutter (frontend) Firebase (backend) Python + TensorFlow Lite (IA) Stripe + In-App Purchases (paiements mobiles) Livrables attendus UI/UX Figma complète MVP fonc...

...* OR it has an active visitor session A vehicle is INVALID if: * Plate not found * Visitor time expired ⸻ 7. Admin Panel (Web) Admin users can: * Create/manage properties * Generate QR codes per property * View all: * Resident registrations * Visitor logs * Enforcement actions (boots, photos, timestamps) * Manage enforcement agents ⸻ 8. Key Requirements * Web only (no iOS/Android apps) * Fully mobile-optimized * Fast plate lookup (very important for agents) * Secure login for agents/admin * Limit: Max 3 vehicles per apartment * Visitor time auto-expiration system * Photo upload for enforcement proof ⸻ 9. Optional (Nice to Have Later) * SMS confirmation for visitors * Alerts before visitor time expires * Payment system for violations * Plate auto-formatting...

I handle the branding for a growing group of restaurants and cafés, and our Instagram presence needs a polished, cinematic lift. The immediate focus is on social-media graphics—specifically, reusable Story templ...priority. Deliverables: • 8 Instagram Story templates (1080 × 1920) • 10 feed post designs in square and vertical ratios • Layered source files (.PSD or .AI) organised for quick edits • A one-page mini style guide covering fonts, colours, and spacing Acceptance criteria: crisp, legible type; balanced composition; mobile-optimised file sizes (<1 MB per Story); colours accurate on iOS and Android screens. First look within three days and final assets within a week keeps us on schedule. If this sounds like your style, let&r...

...sunmak. Beklediğim ana özellikler • Video işlemleri: kırpma, sahne birleştirme, ses ekleme/sessizleştirme, filtreler. • Fotoğraf düzenleme: temel renk ayarı, kırpma, metin/emoji ekleme, hazır şablonlar. • Dizayn araçları: katman mantığı, sürükle-bırak arayüz, ön izleme. • Kullanıcı arayüzü: modern, sezgisel ve Türkçe dil desteği. • Platform: tercihen Flutter veya React Native ile iOS-Android için tek kod tabanı; öneriniz varsa açığım. • Veri saklama: cihaz içi + opsiyonel bulut yedeği. Teslimatta görmek istediklerim 1. Uygulamanın wireframe ve akış diyagramı. 2. Çalışır prototip (temel modüller aktif). 3. Dokümantasyon: kurulum...

Preciso que você desenvolva, do zero, um aplicativo mobile (Android e iOS) para venda de serviços e produtos, cobrindo tanto o Frontend quanto o Backend. Quero uma interface moderna e limpa, capaz de conduzir o usuário desde o cadastro até a finalização da compra sem fricção. Funcionalidades essenciais • Autenticação: e-mail/senha, recuperação de senha e token de sessão seguro. • Catálogo de produtos e serviços com filtros, busca e página de detalhe. • Checkout integrado a cartões de crédito/débito e Pix, com confirmação em tempo real. • Chat interno entre comprador e vendedor suportando mensagens de texto e ...

We are building a social-driven e-commerce experience LIKE AMAZON . and now need the full mobile application delivered for both iOS and Android. The core account flow is phone-number registration with OTP verification; it must handle resend logic, basic fraud protection, and a smooth first-time user experience. Code may be written in Flutter, React Native, Kotlin/Swift, or another cross-platform stack you prefer—as long as both stores receive the same polished feature set and the final builds meet Apple App Store and Google Play requirements. Deliverables • Complete source code for iOS and Android builds • OTP-based authentication module fully integrated with a scalable back-end (Firebase Auth, Twilio Verify, or a comparable service) • Installatio...

...from notes on paper to a fully functioning mobile application that runs smoothly on both iOS and Android. While the concept itself is still flexible—I want to refine it together—I do know I need a modern, responsive interface, clean architecture, and the ability to scale features over time without rebuilding from scratch. If you’re comfortable working in a cross-platform framework such as Flutter or React Native (or can explain why native Swift / Kotlin would be the smarter route), I’d like your guidance on the best technical path, timeline, and any third-party services we should integrate from the outset. Deliverables I expect: • A compiled, store-ready build for iOS and one for Android • All source code, documented and version-...

I’m looking for a turnkey job-portal script—built in PHP with a MySQL back-end—that I can deploy fast on web and as companion Android/iOS apps. While the core must already be stable and production-ready, I will require extensive customization, so clean, well-documented code and modular architecture are essential. Core functions I must see working out of the box: • Employer side: job-posting templates, an application-tracking workflow, and a full employer dashboard. • Candidate side: intuitive application flow, profile management, resume upload, saved jobs, plus responsive design that looks great on mobile browsers. • Authentication: email/password, social media log-ins, and phone number verification ready to switch on from the admin panel. &bu...

...functional Android app. The core features I have in mind include: • Product catalog with search and category filters • Secure user registration, login, and profile management • Shopping cart and checkout flow that supports major payment gateways • Order history and basic push notifications for status updates • Simple admin interface or API hooks so I can add, edit, or remove products without rebuilding the app Clean, maintainable code written in Kotlin or Java is preferred, and the final build must be ready for submission to Google Play. If you have experience integrating payment APIs, optimizing for varied screen sizes, and following Google’s material design guidelines, you’ll be a great fit. Please share a brief outline of ...

Preciso de um(a) desenvolvedor(a) que assuma todo o ciclo de construção de dois sites — cada um deles deverá ser publicado também como aplicativo mobile (Android e iOS). Quero acompanhar o processo em tempo real por videoconferência ou live-coding para sugerir ideias e compreender os comandos principais, portanto disponibilidade para sessões ao vivo faz parte do trabalho. Escopo técnico • Front-end: layout responsivo, navegação clara e performance otimizada. • Back-end: APIs seguras, bancos de dados estruturados e escaláveis. • Infraestrutura: configuração de servidores, domínio, certificado SSL, CI/CD e monitoramento básico. • Lançamento: publica&...

I’m ready to give you full access to our live, multi-tenant transport...Acceptance criteria • No critical or high-severity issue left unresolved or without a mutually agreed mitigation plan. • All mandatory compliance checkpoints evidenced. • Performance targets documented with reproducible scripts. Minimum profile I’ll accept – 3+ years dedicated to SaaS QA. – Current OSCP, CEH, or CREST certification (attach proof). – Access to a range of real iOS and Android devices. – Demonstrable GDPR experience. When you respond Send two recent project examples of comparable scope, mention the exact stack of tools you plan to use for each test category, attach a sample report, and outline your fixed-price schedule. A signed N...

...will bring more than 88 million professionals together on a single, easy-to-navigate website and mobile app. The core idea is to let users register, build rich profiles, and connect instantly so they can exchange expertise, form teams, and complete paid work without friction. The assignment covers the full build of an MVP: • Information architecture and clean, intuitive UI/UX for web and iOS/Android • Secure account creation (email, social, multi-factor) and profile management • Robust search and matching logic so users quickly find talent or projects • Real-time chat plus file-sharing for smooth collaboration • Escrow-style payment flow, dispute handling, and transparent fee reporting • Admin dashboard with analytics, user management, an...

I am looking for an experienced Flutter developer to build an Android mobile application for my existing website: https://trustserve.store. The app must NOT be a WebView. I need a proper Flutter-based mobile application that is fully connected to my WordPress backend using REST API, so that all data between the website and the app stays completely synchronized. Project Overview: My website is a real estate and classified listings platform (similar to OLX). The mobile app should act as a frontend and fetch/send all data from/to the website database via API. Core Requirements: - Develop a Flutter-based Android app - Integrate with WordPress REST API - Fetch listings, categories, and user data from website - Allow users to post ads (data must be stored on website) - User aut...

I need a fun, visually engaging math learning app built in Kotlin for Android phones and tablets, aimed squarely at children aged 7-9. The core experience should revolve around short games and interactive activities that motivate practice, paired with quick quizzes or test rounds so kids can see their progress immediately. Here is how I picture the flow: • A friendly home screen leading to themed “game worlds” (e.g., space, jungle, underwater) where each world introduces specific math skills. • Inside each world, mini-games deliver the instruction and practice; at set milestones, a timed quiz pops up to check mastery and unlock the next level. • A simple progress dashboard for both the child and the parent, highlighting stars earned, quiz scores, and ...

...that must run smoothly on both iOS and Android from day one. The first milestone is rock-solid, PCI-compliant payment processing: users should be able to add cards, initiate one-off or recurring transactions, and view real-time confirmations inside the app. You are free to suggest your preferred cross-platform stack—whether it’s React Native, Flutter, or a truly native Swift/Kotlin split—so long as the final builds meet Apple App Store and Google Play submission requirements and keep performance tight. I will provide UI wireframes, brand assets, and the payment-gateway API keys; you will wire everything together, handle secure token storage, and return clean, well-documented code plus test suites. Acceptance criteria • Testflight and internal Andro...

Saya ingin membangun sebuah aplikasi Android sederhana yang memungkinkan pengguna menghasilkan uang melalui mekanisme yang akan kita diskusikan lebih lanjut. Pada tahap awal saya hanya membutuhkan: • Fitur login pengguna yang aman (email / nomor ponsel + kata sandi, atau opsi Google Sign-In). • Antarmuka dasar—cukup halaman login, halaman beranda setelah masuk, serta placeholder untuk modul monetisasi di versi berikutnya. • File APK siap uji beserta kode sumber dan panduan setup singkat agar saya dapat menjalankan proyek di Android Studio. Fokus utama saya adalah mendapatkan fondasi aplikasi yang rapi dan mudah dikembangkan lebih lanjut. Gunakan praktik terbaik Android (Kotlin disukai, namun Java boleh saja), arsitektur MVVM sederhana,...

...and experienced Flutter Developer to build a professional News & Information Mobile App for both Android and iOS platforms. About the App: This is a News & Information app where users can read latest news, browse by category, search topics, save articles, and receive breaking news notifications. The app should be fast, smooth, and easy to use. Required Features: Home news feed with images Categories (Sports, Politics, Tech, Entertainment, etc.) Search by keyword Push notifications (Firebase) Bookmark / Save articles Dark mode & Light mode Social sharing (WhatsApp, Facebook) Google AdMob ads integration Web-based Admin Panel to upload & manage news Technical Requirements: Framework: Flutter (Android + iOS — single codebase) Backend: Firebase or Node.js...

I’m ready to launch an end-to-end digital platform that lets clients request service-based consultations and receive my response as a concise set of bullet-point assessments—no live video, audio, or chat sessions required. Here’s the experience I’m after: a visitor lands on a clean, responsive website or opens the companion iOS/Android app, creates an account, fills out a guided form, pays (if we decide to add payments later), and then gets notified when their personalised bullet-point report is ready. From my side I need an admin console where I can review each request, draft the assessment, and publish it with a single click. Key build requirements • Unified back-end powering both the website and mobile apps. • Secure sign-up/login, prof...

I need an experienced talent sourcer who can quickly identify, screen, and present two remote-work cohorts for a new streaming project: • 50 female streamers • 200 male or female chat moderators For the female talent, I’m only interested in ages 18-30 who are confident on camera, enjoy interacting with viewers, and own a high-quality phone (Android 2023+ or iPhone 11+). A steady internet connection is non-negotiable, and I’d like you to capture basic stats (age, height, weight) plus a Telegram ID. Although I will accept candidates from the UK, Europe, Australia, Canada, the USA, Indonesia, LATAM, and elsewhere, they must be comfortable working to a flexible schedule. Moderators should also be 18-30 and possess their own PC or laptop, a stable 100 Mbps co...

...device only) Secure storage implementation: iOS: Keychain Android: Keystore Private keys and seed phrases must never be stored in plain text Seed phrase must be displayed once during wallet creation with appropriate user confirmation Platform Requirements: Mobile application only: iOS (via Xcode) Android (via Android Studio) Cross-platform frameworks preferred: React Native or Flutter Security Requirements: No custom cryptographic implementations; use established libraries only Secure transaction signing via Application-level protection (PIN and/or biometric authentication) No sensitive data exposure in logs, storage, or network requests Deliverables: Fully functional, production-ready mobile application (iOS + Android) Clean, maintainable, and well-do...

Project Title Build Offline-First Mobile App for Small Business Profit Tracker with Mobile Money Subscription (Android + iOS) Project Description I am looking for an experienced mobile app developer or development team to build a professional offline-first mobile application for small business owners such as: Market traders Tomato sellers Grocery shop owners Barbers Salons Kiosks Small stores Phone repair shops Informal businesses The app will help users understand their daily sales, estimated profit, operating capital, expenses, savings, and business growth in a very simple way. Most small businesses do not track profit properly and often confuse capital with profit. This app should solve that problem. Main Goal of the App Users should quickly enter: Opening capital To...

I need a developer who can cleanly integrate a third-party API into my existing mobile app, which is available on both iOS and Android. The goal is to expose the new data endpoints throughout the app, handle authentication, and make sure every call is efficient and secure. The current code-base is well-structured and under version control; you will receive access to a dedicated branch along with the API documentation and sample keys. Once the endpoints are wired in, I expect you to write or adjust unit tests, verify the integration on real devices for both operating systems, and push a merge request for review. Deliverables • Fully implemented API calls with error handling • Updated UI where new data appears (if needed) • Passing unit tests and a quick usage n...

Saya membutuhkan bantuan untuk membangun sebuah aplikasi Android. Semua komunikasi, dokumentasi, dan antarmuka aplikasi harus sepenuhnya menggunakan bahasa Indonesia karena saya tidak memahami bahasa Inggris. Ruang lingkup pekerjaan: • Rancang, kembangkan, dan uji aplikasi Android sesuai standar Google Play. • Sertakan alur login pengguna yang aman. • Pastikan kode mudah dipelihara dan didokumentasikan dalam bahasa Indonesia. Harapan saya: • Aplikasi stabil di berbagai versi Android terbaru. • Desain antarmuka bersih dan intuitif khusus untuk pasar Indonesia. • Panduan instalasi APK serta petunjuk penggunaan singkat, juga dalam bahasa Indonesia. Berikan portofolio proyek Android Anda sebelumnya (jika ada) dan perkiraan ...

我需要你针对一款 Android 手机应用进行全面测试，重点放在以下三项核心功能： - 登录/注册流程 - 支付系统（含支付成功与失败场景） - 通知功能（前台、后台与推送到锁屏） 测试场景 1. 常见机型与操作系统版本：请覆盖主流 Android 版本，记录兼容性差异。 2. 网络环境：4G/5G、Wi-Fi 与弱网情况下的表现。 3. 边缘情况：连点、切后台、权限被拒绝、电量不足等极端操作。 交付内容 • 一份结构化的缺陷报告（含可复现步骤、截图或录屏、机型与系统信息）。 • 功能通过的用例列表及测试结果。 • 关键问题的初步复现分析与改进建议。 如果你拥有丰富的移动端 QA 经验，能熟练使用常见 bug 追踪工具（如 Jira、Bugly 或 TestRail），并且乐于提出改进思路，我期待与你合作。

...on building a native Android social-networking app from the ground up. The core goal is to deliver a clean, modern user experience that lets people create profiles, connect with others, post updates, and exchange real-time messages. I am happy to refine the exact feature set together, but the fundamentals of a typical social platform—account creation, feeds, messaging, push notifications, and basic moderation tools—should guide the architecture. You may work in Kotlin or Java in Android Studio; I lean toward Firebase for authentication, cloud storage, and push but I am open to equivalent solutions if you justify the choice. Please structure the project so that it scales easily and can be handed over to another developer without friction. Deliverables ...

...Platform: Android (Primary focus) and iOS. Standard Essentials • Push Notifications: For order confirmation, dispatch, and delivery alerts. • Inventory Management: Real-time stock sync with an Admin Dashboard. • Admin Dashboard: To manage products (add/edit/delete), view sales reports, and manage delivery partners. • Geofencing: Ability to restrict orders to specific delivery radius/pincodes (e.g., Haidergarh region). Deliverables • Fully functional APK and iOS build. • Integrated Payment Gateway connected to a live sandbox. • Live tracking module integrated with the order flow. • Complete Source Code and Build Instructions. • Brief Technical Hand-off document (Architecture, API keys management, etc.). Acceptance Criteria • App mu...

...website) * Ensure stable authentication flow --- ### 4. Localization Fixes * Privacy Policy and Terms of Service should open based on selected language (HY / RU / EN) --- ### 5. Profile Section * Add ability to edit user profile (same functionality as website) --- **Expected Result:** * Mobile app visually consistent with website * Core features working properly * App ready for publishing (Android first, iOS optional) --- **Tech Stack (if applicable):** (To be confirmed – mention your stack here if needed) --- **Timeline:** ASAP (priority project) --- **Budget:** Open for discussion --- **Additional Notes:** * Website design must be used as the primary reference * Focus on speed and stability over perfection * Further improvements will be handled in later ...

Title: Cybersecurity Specialist Needed to Identify and Eliminate Ongoing Device & Account Breach Description: I am looking for an expe...access Secure all accounts (social, email, iCloud, etc.) Provide steps to fully eliminate the threat Recommend long-term security practices and tools Requirements: Proven experience in cybersecurity / ethical hacking / digital forensics Strong understanding of account takeovers, phishing, malware, and device security Ability to clearly explain findings and solutions Experience with mobile (iOS/Android) and desktop security Goal: To fully identify the source of the breach, remove any threats, and ensure all devices and accounts are completely secure moving forward. Please include your relevant experience and approach to handling such cases ...