安卓应用开发 Jobs

I want a true Bluebook-style application that lets students sign up with email verification, log in securely, and sit for timed SAT Math sections. The same codebase should compile cleanly for iOS and Android phones as well as native Windows and Mac desktops so students can practise on any device they own. Core flow • Student creates an account, verifies via emailed link, and lands on a simple dashboard. • From there they can launch a full-length math section that mimics official SAT timing, auto-advances after each question, and locks once time expires. • At the end of the session the app instantly scores the attempt, shows the correct answers with explanations, and saves the record for later review. I will supply the question bank in CSV; the app just needs an import rout...

I have a working prototype built in Google AI Studio and I now need to take it from “demo” to a secure, production-ready release on both web and Android. First, I want every credential locked down. Both the API keys and the code itself must be protected: secrets moved to environment variables or Secret Manager, no keys exposed in the client bundle, and the repository cleaned of sensitive commits. A brief security checklist or automated scan that proves the hardening is complete will form part of the hand-off. Next comes a functionality sweep. I’m not sure whether anyone has formally reviewed the code, so plan to step through each user flow, patch breakages, and make sure the app genuinely meets Minimum Viable Product standards. User sign-in must switch to Google Authen...

I'm seeking an experienced developer to create a complex gambling app, available on iOS, Android, and Web platforms. Key Requirements: - Primary function: Gambling - Platforms: iOS, Android, Web Ideal Skills: - Extensive experience in developing secure, scalable gambling applications. - Proficient in iOS and Android app development. - Strong web development skills. - Knowledge of gambling regulations and compliance. - Expertise in UX/UI design for a seamless user experience. - Experience with payment gateways and in-app purchases. Please provide a portfolio showcasing similar projects and an estimate of time and cost.

Je veux transformer mon idée en une première version d’application mobile Android, simple mais solide, centrée sur un module de paiement en ligne entièrement fonctionnel. Je fournirai l’arborescence d’écrans, le logo et les couleurs ; vous prenez en charge la réalisation technique et la publication en test fermé sur Google Play Console. Livrables attendus : • Code source complet (Kotlin ou Flutter accepté) • APK installable + build de production • Intégration sécurisée d’un prestataire de paiement (Stripe, PayPal ou équivalent) avec gestion des confirmations et erreurs • Tests unitaires de la séquence de paiement • Breve documentation d&rsq...

I urgently need a seasoned Android engineer to take a brand-new idea from concept through to a fully working application. The exact feature set is still open for discussion, but whatever we build must run smoothly on both the latest devices and older phones and tablets without breaking UI or functionality. You will handle architecture, coding, testing, and deployment to Google Play, providing me with the full source code and a signed APK at each milestone so I can track progress. Expect to optimise for performance, follow modern Material guidelines, and implement solid backward-compatibility strategies—whether that means leveraging AndroidX, shrinking the APK with ProGuard/R8, or tailoring layouts with resource qualifiers. Clear, well-commented Kotlin or Java, Git-based version...

I'm looking for a skilled developer to create a simple and clean Android cafe billing app with a customer loyalty program feature. Key Requirements: - Android platform support - Simple and clean user interface - Customer loyalty program integration Ideal Skills and Experience: - Experience in Android app development - Strong UI/UX design skills for a minimalist interface - Knowledge in implementing loyalty program features Looking forward to your bids!

I already have full, working source code for an e-commerce application on both Android and iOS. No new features are required right now—I just need clean, release-ready builds. You will receive the entire project, including all assets and any existing keystore, provisioning profile, or certificate information I have. Your task is to open the projects in Android Studio and Xcode (or the appropriate IDEs), resolve any dependency issues, and generate production builds. Deliverables • Android: signed APK or AAB, ready for Google Play submission • iOS: signed IPA, ready for App Store Connect upload Once the builds install and launch successfully on real devices, the job is done.

I'm looking for a skilled app developer to create a vibrant Android and ios app for buying and selling foreign currency in Delhi and NCR. Key Requirements: - Google and OTP authentication for secure login - Colorful and vibrant user interface - Features include: - Currency exchange rates - User profiles - Transaction history - Customized rates for buying and selling currency Ideal Skills and Experience: - Experience in developing secure authentication systems - Strong UI/UX design skills for colorful and vibrant interfaces - Background in financial or currency exchange apps is a plus - Proficiency in Android/ ios app development Please share your portfolio and relevant experience.

I’m launching a worldwide singles fraternity—“Grupo Honest Singles”—designed to connect genuine people while giving special visibility and support to carefully selected owner-operator businesses. To make this vision accessible everywhere, the community needs to live both on the web and on mobile. The build covers a responsive website plus companion apps for iOS and Android that mirror the same core experience. Members should be able to create rich profiles, search and interact with one another, and discover businesses we endorse through a dedicated support section. Security and ease of entry matter, so the platform must allow account creation and sign-in through standard email/password as well as popular social logins. Key deliverables • Fully branded...

Saya ingin membeli HP Android baru yang benar-benar tangguh untuk bermain game. Prioritas utama saya adalah performa yang cepat; kamera dan daya tahan baterai hanya menjadi nilai tambah. Yang saya butuhkan dari Anda: • Daftar 3–5 pilihan HP terbaru yang resmi beredar di Indonesia. • Spesifikasi kunci tiap model (chipset, RAM, storage, layar, baterai, sistem pendingin). • Skor benchmark gaming atau ulasan performa tepercaya sebagai bukti kecepatan. • Kelebihan dan kekurangan singkat per model, khususnya saat dipakai bermain game berat. • Perkiraan harga resmi/rata-rata toko online serta tautan pembelian yang masih aktif. Bila memungkinkan, lampirkan tips pengaturan (mis. mode game, opsi grafis) agar performanya optimal. Saya akan memilih satu r...

My dating app is already coded, tested, and running smoothly; now I need it live on both the iOS App Store and Google Play. I hold active developer accounts for each storefront, so provisioning profiles, certificates, and console access are ready for you from day one. Your task is strictly the release process: create production-ready builds, prepare store listings, configure in-app settings (privacy, screenshots, icons, descriptions, age rating, policies), submit for review, and shepherd the submission through until both stores show the app as publicly available. I will supply all design assets and copy; please feel free to suggest improvements if you see any compliance or optimisation issues. Deliverables I will sign off on • Signed, versioned IPA and AAB/APK bundles successfully...

I need an Android-only time management app whose core purpose is to keep users on schedule through smart notifications and reminders. The flow is simple: a user sets a task, defines a deadline or ideal start time, and the app nudges them at just the right moments. You are free to choose the framework (native Kotlin/Java or a cross-platform option that still compiles cleanly for Android) as long as the final build is stable, responsive, and Play-Store-ready. I’ll want both an installable APK and full, well-commented source so I can iterate later—potentially adding task scheduling or full time-tracking modules down the road. Key expectations • Clean, modern UI that feels intuitive on current Android versions • Reliable foreground and background notification ha...

I want a clean, lightweight Android application that my field sales team can open, log in with their company email and password, and capture secondary-sales orders on the spot. Two roles matter to me: • Salesman – enters demand, adjusts MRP-based discounts, and submits the order. • Manager – reviews or edits what the salesman submitted and can pull quick reports. The core flow is simple: after login the salesman selects the customer, adds products with quantities, sees the auto-calculated total, applies any discount by percentage or value, and taps “Generate Order”. The app must immediately create a branded PDF containing all line items, MRP, discounts, net values, date/time, and the salesman’s details. That PDF should save locally and be shareab...

I’m ready to turn my idea into a fully-functional Android application and need a developer who can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: ...

Project Goal Build a mobile-first digital payments app that allows users to send, store, convert, and spend crypto-backed USD with extreme simplicity, comparable to Zelle or Venmo — while crypto remains largely invisible to the user. Core Principle: “It should feel like a normal money app, powered by crypto in the background.” ⸻ Target Platforms • iOS • Android • Backend server • Admin dashboard (web) ⸻ Core MVP Functionality 1. User Authentication Required: • Phone number signup • SMS verification • Optional email backup • PIN or Face ID login • Secure session management System must: • Prevent duplicate accounts • Securely encrypt user credentials ⸻ 2. Automatic Wallet Creation Upon signup, the...

I have two signed Android APKs that share the same brand: a Chinese-language build that already handles user registration smoothly, and an English-language build that currently lacks this flow. My goal is to extract every user-management API call from the Chinese APK—endpoints, headers, payload structures, encryption or signing logic—and transplant that functionality into the English APK so both variants register users in exactly the same way. What I can provide: • The release APKs for both language versions • Valid test accounts and server access for live registration checks • Any additional assets the Chinese build relies on (native libraries, certificates, config files) What I need from you: • Decompile, inspect and document the Chinese APK (jadx, a...

I need our web-based CRM, currently built in React, re-implemented as fully native apps for both iOS and Android. The existing REST and GraphQL endpoints are stable, so the job is mostly about translating interface logic and screens into Swift (or Objective-C) and Kotlin/Java while keeping parity with the browser version. Core functionality to reproduce • Secure user authentication with profile management • Full customer management workflow (create, edit, segment, assign, delete) • Analytics and reporting dashboards identical to the web charts and tables Design requirements The mobile UI must replicate the current design pixel for pixel. All colours, typography, spacing, and animations already exist in Figma; simply mirror them exactly so our users experience no ...

I’m ready to commission an Android-only audiobook application and need an experienced mobile developer to take it from concept to Google Play release. At its heart, the app must stream and locally cache audiobooks, let listeners drop unlimited bookmarks while they listen, and handle one-tap downloads for fully offline playback. Monetisation is essential: new titles will be sold individually, so please wire the catalogue to Google Play Billing for in-app purchases. Authentication will be straightforward email-and-password login—either a lightweight back-end you spin up or a Firebase Auth integration works for me so long as it’s secure and quick for the user. Core flow I have in mind • Launch ➜ user signs up or logs in • Library screen lists available au...

My Flutter app is finished and tested on my end; what’s left is to get it live on both Google Play and the Apple App Store. I already have active developer accounts for each platform and all listing assets—screenshots, icons, long/short descriptions—are prepared. I simply need someone who knows the submission pipelines inside-out to take the project across the finish line. Here’s what I’m looking for: • Build & sign the final release packages (AAB for Google Play, IPA for iOS) or validate the ones I provide. • Upload everything through Play Console and App Store Connect, filling in required metadata, privacy labels, content ratings and policy declarations. • Set up closed/internal testing: Google now mandates tester access prior to pu...

I own a licensed copy of the Dooo Movie Streaming Android source code and now need it running live on Google Play. The current project refuses to compile because of dependency issues and an outdated SDK. Here’s what I need from you: • Open the project in Android Studio, upgrade it to the latest stable SDK/Gradle versions, and cleanly resolve every dependency conflict so the APK builds without warnings. • Configure package name, signing key, Firebase/Ad-mob (if present in the code), and any other runtime settings the template requires. • Run a full device/emulator test to confirm login, streaming, search, and push-notification flows all work exactly as in the template demo. • Generate release AAB/APK and guide me through—or directly handle—th...

I’m ready to move forward with a project that pairs a full-featured Android app with a matching website. The core requirement both share is secure, reliable user authentication—think sign-up, login, password reset, and the usual account-management flows. Everything else about the product’s purpose, design language, and long-term roadmap is still flexible, so I’d like to refine those details together once you’re on board. I don’t have a fixed technology stack in mind; whether you prefer Kotlin in Android Studio, Flutter, React Native, or another modern framework on the mobile side—and Django, Laravel, Node.js, or something cloud-native on the web side—I’m open to your recommendations. What matters most is clean architecture, maintainabl...

I already own a full, unmodified copy of the WoWonder PHP script plus the matching Android Timeline App (a release from within the past year). All I need is an expert who has done this exact job before to turn that code into a Play-Store-ready build. Here is what has to happen: 1. Connect the Android source to my live WoWonder PHP site, including any custom server tweaks the API needs. 2. Reskin: swap in the new app name, splash screen, logo (I will supply the artwork) and adjust the primary colours so the interface matches the brand. 3. Change the package name to a unique identifier. 4. Produce a signed APK and an AAB bundle I can upload straight to Google Play. 5. Send brief notes on anything I must replicate if I update the code later. The server runs a customised configurati...

I'm looking for a skilled mobile app developer to create an application for both iOS and Android platforms. The app will display UK planning applications and should include the following features: - Search functionality: Users can easily search for specific planning applications. - Push notifications: Users will receive updates on new applications or changes to existing ones. - User login: Secure access with personalized user accounts. - Subscription: Users can subscribe for premium features or data. Ideal skills and experience: - Proficiency in developing mobile apps for both iOS and Android. - Experience with integrating search functionality and push notifications. - Strong knowledge in implementing secure user login systems. - Familiarity with subscription models in mobile applic...

I need an Android app to control my IoT device over Wi-Fi. The app should allow users to: - Turn the device on/off - Adjust settings - Schedule operations - get present status - device voltage regulation Ideal skills and experience: - Strong Android development skills - Experience with IoT communication protocols, particularly over Wi-Fi - User-friendly UI/UX design - Background in setting up secure connections for device control

I already have a finished Android application and the signed build is ready to ship. I need a reliable developer who can first walk it through a clean launch on Google Play—handling the Play Console setup, store listing, key management, policy checks, and final publication—then stay on as the point-person for routine maintenance. There are no new features or redesigns on the roadmap right now; the focus is strictly on stability. After release, I’ll rely on you to monitor crash reports, keep the SDK versions current when Google’s requirements change, and step in quickly if any compliance or compatibility issues crop up. Acceptance criteria • The app is live and searchable in Google Play with all assets, descriptions, and tags correctly configured. &bul...

Hello, I need a custom mobile app that runs on Google Pixel 8 and newer. The app should open the Wire application, go through my entire contact list (500+ contacts), and send the same message to each person individually - no group chats should be created so that recipients remain anonymous to each other. Key features • Automatically navigate to each contact in Wire and send the message. • I select the text manually each time before sending starts. • Built-in log that records: – Message sent to each contact – Any error messages/problems – Exact time of each message sent • Runs entirely on the phone as a standalone Android app without requiring a computer or browser. • Ready to install via APK or Google Play (internal test channel is okay). Techn...

Jag behöver en skräddarsydd mobilapp som körs på Google Pixel 8 och nyare modeller. Appen ska öppna Wire-applikationen, gå igenom hela min kontaktlista (500+ kontakter) och skicka ett och samma meddelande till varje person individuellt – inga gruppchattar får skapas så att mottagarna hålls anonyma för varandra. Viktiga funktioner • Automatiskt navigera till varje kontakt i Wire och skicka meddelandet. • Jag väljer texten manuellt varje gång innan utskicket startar. • Inbyggd logg som registrerar: – Skickat meddelande till varje kontakt – Eventuella felmeddelanden/problem – Exakt tidpunkt för varje skickat meddelande • Körs helt på telefonen so...

Hi I will share the details with the shortlisted candidates. thanks

I need a very small Android application whose only job is to launch and immediately play a single MP4 video in full-screen. As soon as the user taps the app icon, the video should start on its own—no play, pause, seek bar, or any other controls visible. After the video finishes, the app can simply close or loop; I’m open to whichever is quickest to implement. The MP4 file will be provided. Please package it inside the APK, so the app works offline with no additional downloads. Android Studio, Kotlin or Java, and the built-in VideoView or ExoPlayer are all fine as long as start-to-finish playback is seamless on Android 8.0 and above. Deliverables: • Signed release APK for testing • Complete source code project that compiles in the latest stable Android Studio &bu...

I need an Android social-networking app built from scratch. The core idea is a clean, modern platform where users can register, create profiles, add or follow friends, share text-photo-video posts in a scrolling feed, chat in real time, and receive push notifications. A lightweight admin panel for content moderation is also required. Please deliver: • Full Android Studio project (Kotlin preferred, Java acceptable) with well-commented source code • REST or Firebase backend setup, documented and ready for deployment • Brief UX prototype early in the process and a functional MVP roughly six weeks from kickoff • Clear installation guide and API documentation so I can extend or port it to iOS later Material Design guidelines should steer the UI. I’m happy to su...

I’m running an ongoing fraud-prevention test for RingApp and need help from people who are physically in Palestine, using an OOREDOO SIM on an Android phone. After installing the app, all you have to do is sign up with your OOREDOO number, open the profile screen, enable “Auto-perform tasks,” and leave the app active in the background. RingApp will trigger and instantly decline test calls on its own; you won’t have to answer or dial anything manually. Each block of 200 completed test calls releases a $5 milestone through Freelancer. The app tracks the call count for you, so payment is straightforward once the counter reaches 200 and the data syncs. Acceptance criteria • RingApp is installed and registered on an Android device with an OOREDOO SIM. • &...

I already have a fully-functioning web application and all the Play Store listing graphics (icons, feature graphics, screenshots, banners). What I need now is for someone to turn that site into an installable Android application and walk it all the way through publication on Google Play. The scope is straightforward: • Wrap or rebuild the existing web app into a compliant Android package (AAB preferred). • Configure signing, versioning, and any required permissions. • Create the store listing using the assets I will supply, fill out the content ratings and policy forms, and submit the release. • Hand back the final source, the signed AAB, and confirmation that the app has passed Google’s review or clear guidance on any requested fixes. If you have recent e...

I have an existing Android app that is stable but still very lean on features. The immediate goal is two-fold: first, roll out a new “upload” capability inside the app (users need to be able to select a file—primarily images or PDFs—from local storage and send it securely to our backend); second, compile, sign, and publish the updated build to the Google Play Console so the change is live for all users. The current stack is Kotlin with standard Android Jetpack libraries; the backend is ready and exposes a REST endpoint for the upload, so the mobile side only needs to handle file selection, progress indication, and a simple success/fail response. If you prefer Java that’s fine—as long as the final APK/AAB plays nicely with our existing codebase. Deliver...

I need an Android app that lets my field-marketing reps see their entire day laid out on Google Maps, record every turn they take, and automatically total the distance they cover. Each sales call is flagged as a Meeting Point marker so the team can tap it, log arrival and departure time, and have the visit counted in their daily report. Core flow • Reps start a “shift”, the app begins GPS tracking in the background and draws the live route on the map. • Every time they reach a preset Meeting Point, the app recognises the stop, time-stamps it, and asks for a quick note or photo. • When they end the shift, the app stores a summary: full polyline of the route, total distance travelled, list of visited Meeting Points, and idle time between stops. A simple d...

I’m ready to move quickly on a native Android app focused on trading. The core idea is to give users a clean, fast interface where they can monitor real-time market data, place trades, and review their portfolio on the go. Here’s what I need from you: • A production-ready Android application written in Kotlin (Java is acceptable if you have a strong case). • Secure user authentication and encrypted storage of sensitive data. • Real-time price feeds pulled from a well-documented REST or WebSocket API that I’ll provide. • Trade execution workflows (place, modify, cancel) with robust error handling. • Responsive UI that follows current Material Design guidelines and looks solid on phones and small tablets. • A concise README and c...

I need a lightweight, real-time chat application built exclusively for Android phones. The core focus is text messaging—no voice calls or media sharing for this version—so the interface and back-end can stay streamlined and fast. Key goals • Smooth one-to-one text conversations with instant message delivery and read receipts • Simple, clean UI that feels native to modern Android versions • Push notifications for new messages when the app is in the background • Secure user authentication (email, phone, or social sign-in—whichever you recommend) • Cloud-hosted database for message storage and basic user profiles You’re free to choose the stack you know best (Firebase, AWS Amplify, Supabase, or a custom REST/WebSocket back-end) ...

UK Part-time Recruitment | WiFi Field Data Collector, Earn Extra Money Easily! Core Highlights • Transparent Salary: 3gbp per asset, more work more gain, no hidden deductions • Flexible Time: No office hours required, take orders and arrange your time freely in spare moments • Ultra-low Threshold: No professional experience needed, easy to master for beginners, with bilingual (Chinese & English) operation manual • UK-wide Coverage: No specific city restrictions, available anywhere in the UK Must-Meet Requirements (All Required) 1. Location Requirement: Must be located in the UK and able to complete on-site data collection tasks locally 2. Device Requirement: • Android smartphone (Android 6.0 or above; Android 9.0 is not recommended as it tends to free...

Our medical social-networking application is ready for a full shake-down on both iOS and Android. I need every screen and workflow assessed for visual polish, functional accuracy, and cross-device stability, covering the latest OS releases as well as several earlier ones. You will receive the TestFlight build, Admin link and APK link along with a brief feature map. Work through each feature, note anything that deviates from expected behaviour, and verify whether the problem is device-specific or repeatable elsewhere. Pay special attention to: • User interface consistency: colours, fonts, tap targets, accessibility labels • Core functionality: sign-up, profile edits, messaging, search, push notifications, in-app purchases • Compatibility: performance on current and olde...

I’d like a seasoned Unity-IL2CPP modder to open up Granny 1.8.5 (APK, IL2CPP build), pull out the bits I need, and layer in brand-new content while keeping the original game fully playable. What I need first is a clean decompile focused on the maps and underlying mechanisms. From there we can extract models, textures, voices, and any other assets needed for the additions below: • Two extra floors above the current 4. attic (5th & 6th) • A full underground area that mirrors Slendrina The Cellar, complete with shafts, chests, keys, and secret routes • Fresh puzzles and collectible items that tie each zone together, plus at least one alternative escape method • Smarter, faster Granny AI that can crawl anywhere, patrol the new spaces, and trigger smaller m...

Quiero trasladar mi página de inventario a una app Android nativa que trabaje exactamente con la misma base de datos: ni copias, ni sincronizaciones externas, sino conexión directa para que todo cambio se refleje al instante entre web y móvil. El usuario ya ingresa en la web con su correo y contraseña, así que el flujo de autenticación debe mantenerse idéntico en la aplicación. Necesito que la app reproduzca las funciones que hoy ofrece el sitio —gestión de productos, movimientos de stock, reportes y cualquier otra vista crítica— con la misma lógica de negocio y sin perder velocidad. Si en el proceso puedes añadir notificaciones en tiempo real o mejoras de usabilidad, serán bien recibi...

I need a clean, native Android application that works as a focused productivity tool centred solely on task management. The core flow is simple: users create tasks, edit them, mark them complete, and view an always-updated list of what still needs attention. Fast load times, smooth transitions and a clutter-free Material-compliant UI matter more to me than a long feature checklist. Key features and behaviours • Add, edit, archive and delete tasks locally (Room or Realm preferred, but I’m open if you can justify another lightweight on-device store). • Optional grouping or tag system so users can sort their list quickly. • Swipe or long-press gestures for common actions. • Due-date picker with basic notifications. Push is not required at launch; local ale...

I have already wrapped up all product design, UX, and UI work for my new Android app and now I need the engineering muscle to bring it to life. Your main mission is two-fold: first, build system-level battery-optimization enforcement so the app behaves responsibly in the background without being killed by Doze or aggressive OEM policies; second, hook the project into Firebase. On the Firebase side, the app must support Authentication and Realtime Database right out of the gate, with Cloud Messaging for push notifications and Remote Config for on-the-fly feature tuning. For sign-in flows, I only need email-and-password and Google Sign-In. You will be working from a clean, well-commented repository that already contains the complete UI layer. I’ll provide the Figma files, current Gra...

I’m ready to turn a simple game concept into a playable Android prototype and need a mobile-game developer who can move quickly from idea to on-device build. Here’s what I need at this stage: • A runnable Android APK plus complete source files set up in a common engine or native Android Studio project—your choice, so long as it’s easy for me to open and extend. • One short, self-contained level that shows the core gameplay loop with placeholder art and sounds. • Basic UI flow: splash screen, main menu, in-game HUD, pause/restart, and end-of-level summary. • Clean, well-commented code structured for easy future expansion. • Smooth performance on recent mid-range Android phones. I’m flexible on tools—Unity, Unreal, Go...

I need a small, self-contained Android application that runs only on my phone—no cloud, no remote server. The goal is to catalogue dancer profiles so I can show, search, and share them quickly during auditions. Core workflow • Create a new profile with name, age, height, full measurements, and the city the dancer is based in. • Attach multiple photos to each profile (photos are the priority), with the option to add a video clip later. • Browse or instantly search by city; that is my main way of organising the list. • From any profile, tap a button to share it straight to WhatsApp or Instagram without exposing the rest of the database. • Keep everything offline in an on-device database (Room or SQLite is fine). A simple “Backup / Restore&rdquo...

I want to bring a very focused Android app to life: its single goal is to help people relax by letting them browse and play short, soothing sound effects. Think of rain drops, crackling fire, or soft wind—nothing fancy beyond an intuitive catalogue and crisp, uninterrupted playback. Here’s what I need built: an Android application (Kotlin or Java, your choice) whose core functionality is sound playing. The user opens the app, taps a tile or button representing a specific sound effect, and the audio starts instantly. They can pause, stop, or switch sounds without lag. No social networking, e-commerce, or bulky productivity suites—just a clean, lightweight relaxation tool. Deliverables • Complete Android Studio project with well-commented source code • Signe...

Saya ingin Anda membangun sebuah aplikasi produktivitas berfokus pada fungsi pengingat dengan notifikasi push. Target akhirnya benar-benar dapat dipasang dan dipakai, bukan sekadar mock-up. Ruang lingkup • Kembangkan APK stabil yang kompatibel minimal Android 8.0 (Oreo) dan tetap ringan saat dijalankan. • Tulis kode bersih dan terstruktur menggunakan Java atau Kotlin di sebuah repository Git yang dapat saya akses. • Sertakan petunjuk build & setup singkat sehingga saya bisa meng-clone, build, dan memasang aplikasi tanpa hambatan. • Antarmuka harus modern, intuitif, dan bebas clutter—saya menilai tinggi UI/UX yang sederhana namun elegan. Fitur inti • Membuat, mengedit, dan menghapus pengingat. • Menjadwalkan notifikasi push tepat waktu, term...

Saya ingin sebuah aplikasi Android yang benar-benar dapat digunakan, bukan sekadar mock-up. Fitur inti masih terbuka untuk didiskusikan, namun hasil akhirnya harus berupa: • APK stabil dan siap di-install • Kode sumber terstruktur (Java atau Kotlin) di repository Git • Petunjuk build dan setup singkat Saya menghargai antarmuka yang bersih, performa ringan, serta kompatibilitas minimal Android 8.0+. Silakan sertakan pendekatan Anda, perkiraan waktu, dan contoh aplikasi serupa yang pernah Anda kerjakan.

I want to launch a clean, user-friendly mobile application that lets customers in Saudi Arabia book limousine services directly from their phones. The app’s sole focus, for now, is booking rides. Users should be able to choose between two ride types—single trip or round trip—and confirm each reservation instantly within the app. A seamless, secure payment gateway is essential. Once a rider selects the trip type, the flow should proceed to fare display and in-app payment (credit/debit cards and common local wallets; advise me on the best SDKs). Real-time vehicle tracking, driver choice, and other advanced options can wait for later versions; I first need a rock-solid booking core. Deliverables • iOS and Android builds (store-ready) • Admin or dashboard pane...

I'm looking to develop a mobile application that facilitates both renting and buying properties. The app will cater to both property seekers and property owners, and needs to be available on both iOS and Android platforms. Key features should include: - User-friendly interface for both property seekers and owners - Advanced search filters (location, price, type of property, etc.) - High-quality images and detailed descriptions of properties - Secure messaging system between seekers and owners - Booking system for property viewings - Integration of maps for property locations Ideal skills and experience: - Proven experience in mobile app development for both iOS and Android - Strong UI/UX design skills - Experience in real estate apps or similar platforms - Knowledge of secure messag...

I’m opening a closed beta on Google Play for my new educational app and need 100 real users to join the tester program, download and install the current build, then exercise it for at least a couple of sessions. The insights I’m looking for focus on overall app functionality, so please keep an eye on how smoothly the navigation flows, how quickly each screen loads, and whether any errors or crashes appear. Because the target audience uses a mix of Android phones and larger-screen tablets, tests must be performed on both device types. To make it easy, I’ll share a private Play Store opt-in link. Once the quota of 100 installs is reached, I’ll close the listing and gather your findings in one structured report. Feel free to supplement written notes with screenshots, ...