Kotlin Jobs

build a Buy-Now-Pay-Later program and need an Android-only locking solution that automatically enforces our repayment terms. Whenever a user misses a scheduled instalment the app must immediately: • trigger a full device lock that prevents normal use until the outstanding balance is cleared; • display a clear, non-dismissible reminder screen guiding the customer to our payment portal. The lock should revert as soon as my server confirms settlement. A lightweight admin console or secure API endpoint is required so my team can push payment-status updates, unlock commands, and view basic device telemetry. Code must be resilient against rooting or factory-reset attempts and comply with Google Play policies for Device Admin / Device Owner apps. Deliverables 1. Android Stu...

This project centres on building a production-ready Utility/Tools Android application written entirely in Flutter. All UI wireframes and detailed user flows are complete; they will be shared once the shortlist is created so you can estimate effort accurately. Core scope The app will rely on a Firebase stack (Auth, Firestore, Cloud Functions, FCM) for data, user management and push notifications. Google Pay is the only payment gateway needed for in-app purchases and subscription handling. I also need AdMob banners and rewarded ads placed in the positions called out in the wireframes. Beyond that, there are two third-party REST APIs that surface real-time data; clean integration with proper error handling and caching is essential. Development expectations – Written in Flutter wit...

Saya ingin membangun sebuah aplikasi sosial media khusus untuk platform Android, tetapi saya masih awam dan membutuhkan bimbingan di setiap langkah. Yang saya perlukan: • Bantuan menyusun fitur inti—registrasi pengguna, pembuatan profil, unggah posting (teks & gambar), dan tampilan feed sederhana. • Antarmuka yang bersih dan mudah dipahami, sesuai standar Material Design. • Kode sumber lengkap (preferensi Kotlin) beserta panduan singkat cara saya bisa menjalankannya di Android Studio. • File APK siap instal untuk pengujian awal. Saya menghargai penjelasan yang jelas tentang arsitektur, library yang digunakan (misalnya Firebase Auth/Firestore bila cocok), serta saran terbaik agar aplikasi dapat dikembangkan lebih lanjut di kemudian hari. Mohon jel...

I’m finishing a social-media app that targets recent Android releases and I now need a specialist to wire up the sensitive permissions that Google guards most closely: • PACKAGE_USAGE_STATS – to analyse how often users open certain screens • SYSTEM_ALERT_WINDOW – to float chat heads and quick-reply bubbles over other apps • FOREGROUND_SERVICE – to keep audio rooms alive even when the UI is backgrounded • BIND_ACCESSIBILITY_SERVICE – to offer in-app captioning for hearing-impaired users • POST_NOTIFICATIONS – to alert followers in real time The core screens are already coded; what’s missing is a clean, policy-compliant implementation of these rights plus the runtime flows that persuade users (and Google Play revi...

Must have Skill as below; (check attached document file before QUOTATION) - DO NOT QUOTE BEFORE READING MY REQUIREMENT. 1. Need App Developer who knows Koplin, Flutter & CodeIgniter 3 PHP framework very well. 2. Developer should be very well knowledgeable of making / deploying apps live on both stores. 3. Must be able to provide document list for each file & functioned that is created, edited, or deleted by him/her. 4. Whatever Fixed or Created new or updated – all feature or functionalities must work on live platform without any error. 5. Workflow - Developer needs to work on live site so whenever is working – must notify – Sign in & sign out info. You can download & setup local setup but once it is fixed & tested, upload on live site, then test on l...

I need an Android-only app that stops the endless scroll on Facebook, Instagram and TikTok, while giving users a live view of exactly how long they spend on each of those platforms. The core idea is simple: whenever the user activates Focus Mode inside the app, vertical scrolling, shorts, reels or any other auto-play feed in the three selected social media apps must be completely blocked until the timer ends or the user explicitly unlocks it with a PIN. Real-time tracking is essential. The moment any of the three apps comes to the foreground, a counter should start and update on a small overlay or notification, then roll straight into a dashboard that shows current session length, total time today and historical charts. No scheduled daily or weekly batches—everything updates instant...

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I’m building a complete trading platform for unlisted shares where investors can view, buy, and sell unlisted shares. The solution has two parts: a responsive web portal and native mobile apps for both iOS and Android. Core features I need implemented • Dynamic share-price module that I can update instantly from an admin dashboard and have reflected across web and apps in real time. • Full trading workflow: add to cart, checkout, and order history. Payments at launch must support credit/debit cards and direct bank transfers; the gateway setup should allow me to plug in digital wallets later without major rework. • Seamless KYC: users upload their Aadhaar and PAN, then e-sign a standard agreement before their first transaction. Files must be encrypted at rest a...

An all-in-one utility application is needed for my Google Play Console. The core idea is simple: bundle everyday helpers such as a calculator, flashlight, and any other lightweight utilities you can fit into a single APK while keeping the interface clean and minimalist. Key objectives • Android-only build (latest stable SDK, minSdk 21 or lower if practical). • Minimalist UI: no unnecessary animations or heavy graphics; flat colours, intuitive icons, and a straightforward navigation drawer or bottom bar. • Features to start with: calculator and flashlight. If you can squeeze in one or two more micro-utilities without bloating size or time, propose them. • Final deliverables must be Play-Store-ready: signed AAB, keystore file, clear versioning, privacy-policy l...

Saya ingin membangun sebuah aplikasi Android yang mempertemukan dua pengguna secara acak untuk saling berkirim pesan teks. Fokus saya saat ini hanya pada fungsi inti berikut. • Percakapan teks real-time: pengguna bisa langsung bertukar pesan begitu sistem melakukan pairing acak. • Pencarian berdasarkan lokasi (opsional): sebelum dipasangkan, pengguna dapat memilih radius atau titik lokasi agar lawan bicara berada dalam jarak tertentu. • Akun anonim sederhana; cukup nama panggilan tanpa proses pendaftaran rumit. Yang saya butuhkan dari Anda: 1. Kode sumber lengkap yang dapat dibuka di Android Studio (Java atau Kotlin). 2. Implementasi backend ringan—Firebase Realtime Database, Firestore, atau alternatif serupa—beserta panduan penyiapannya. 3. Desain...

I need a clean, reliable Android application that lets local cricket enthusiasts reserve turf time, organise their squads, and keep basic match scores—all from a single interface. The core flow is straightforward: a user opens the app, checks real-time slot availability, books a field, invites teammates, and then records overs, runs, and wickets during play. Key elements I expect • Android-native build (Kotlin or Java in Android Studio) with a modern, minimal UI. • Integrated booking calendar tied to my venue schedule. I’m open to either an in-app payment gateway or a simple “pay on arrival” flag—advise me on the best route. • Lightweight player-management module so captains can create teams, add or drop members, and view basic stats. &...

I’m looking for an experienced mobile developer to create a lightweight utility-focused Android app from scratch. The core concept is already defined; I will share the functional requirements and wireframe sketches once we start. Scope of work • Build the complete Android application, covering UI design, coding, and basic data storage where needed. • Ensure smooth performance on the latest Android versions and common mid-range devices. • Implement a clean, intuitive interface that follows Material Design guidelines. • Add analytics and crash-reporting hooks so I can monitor usage after launch. • Provide a signed APK, full source code, and brief setup documentation so I can compile it locally. • Assist with one round of post-handover bug fixes....

I’m ready to move forward with a dedicated Android application and need an experienced mobile developer to turn my concept into a polished, Play-Store-ready product. The focus is Android only for this first release, though I’m open to discussing a future iOS build once we’ve proven the idea on Google’s platform. Here’s what I’m looking for: • End-to-end development: wireframes, UI/UX, coding (Kotlin or Java), testing, and deployment. • Clean, well-documented code that I can easily maintain or expand on later. • Integration of any required APIs, push notifications, analytics, and in-app purchase modules if they make sense for the feature set. • A short post-launch support window to catch bugs and handle the first minor iterati...

Saya ingin membangun sebuah aplikasi Android yang bertujuan menghibur sekaligus mendidik pengguna. Fokus utama saya adalah menghadirkan konten interaktif yang ringan namun menarik, sehingga pengguna betah belajar sambil bermain. Ruang lingkup pekerjaan: • Merancang antarmuka pengguna yang intuitif dan ramah anak-anak maupun remaja. • Mengembangkan fitur inti—misalnya kuis, video singkat, atau mini-game—yang dapat diperbarui lewat backend sederhana. • Mengintegrasikan notifikasi dasar serta pelacakan progres belajar. • Menyiapkan file APK siap uji, beserta kode sumber terstruktur (Android Studio, Java atau Kotlin). Kriteria keberhasilan: • Aplikasi berjalan lancar di Android 10 ke atas. • Navigasi jelas, tanpa bug mayor saat berpindah me...

10 MVP Features of android app 1. Import contacts (Excel + manual) and phone book(with groups) 2. Upload MP3 or direct Record voice note 3. Create & launch a broadcast campaign from imported contacts or existing groups in phone book 4. Schedule broadcast SCHEDULE BROADCAST Scheduling & Automation all at specific time and day: Allows scheduling campaigns to launch at specific times and specific days e.g campaing x will be start on monday 13 june 2026 at 8am, campaing y will be start on wednessdat 16 june 2026 at 8am TIME SCHEDULED Start calling when time: is 7am Stop calling when time is 6pm Auto continue calling the remaining phone numbers on list at 7am next day if yesterday calls were not completed at 6pm Note: I have to select my self the start calling time and stop...

I want an Android app that lets my tuition-class students handle everything in one place. First, they must be able to create an account or log in with existing credentials. Once inside, the timetable should load automatically and push a notification whenever I add, cancel, or reschedule a session. A built-in messaging area is essential so students can reach me (and I can reach them) without shifting to another platform. I’m intentionally leaving out payments and other extras for now; the focus is on registration, schedule visibility, real-time alerts, and smooth in-app chat. Deliverables I expect: • A production-ready Android APK and its full, well-commented source code (Java or Kotlin, latest stable SDK). • Simple admin access or clear written steps that let me u...

I’m planning an Android app designed to make everyday life a little easier by connecting ordinary people with a supportive community. The core idea is simple: users open the app, find others facing similar challenges, share advice in real time, and access curated help resources. Here’s what I need from you: end-to-end Android development—from refining the concept and mapping the user journey, through clean, well-documented Kotlin or Java code, all the way to a polished, Play-Store-ready build. Reliability is crucial; regular progress updates and tested, maintainable code matter as much to me as the final feature set. Because community and support sit at the heart of the product, experience with chat systems, push notifications, secure user authentication, and scalab...

I need a developer who can take my idea and turn it into a functional Android application. This is my first time posting a project here, so I want to keep the scope straightforward: deliver a clean, stable APK along with readable source code that I can compile locally. The core requirements are: • Native Android build (Java or Kotlin). • Well-commented code and basic documentation so I can follow what you’ve done. • A simple, intuitive user interface that follows current Material Design guidelines. Because I am still refining the exact feature set, I’m looking for someone comfortable suggesting best-practice workflows and lightweight frameworks or libraries that will speed up development without over-engineering the app. Think of this as a solid start...

I’m building a dedicated Android application that streams and organizes Islamic content—Naats, Bayans, lectures, and related videos—in a traditional-and-classic visual style. The experience has to feel welcoming for every age group, so the interface should stay simple, readable, and free of visual clutter while still feeling polished. Core experience • Users create accounts, browse by clearly labeled genre categories (Naat, Bayan, Lecture), and enjoy both audio and video through an in-app player. • A quick search bar, favorites/playlist bookmarking, and share buttons keep engagement high. • Push notifications will announce new uploads and featured talks. • Google AdMob banners and interstitials supply monetisation; placement must respect polic...

I need a fully native media-export pipeline inside my existing React Native app for both iOS and Android. When the user taps the export button, the module should take the photos, videos, and audio tracks they have picked, decode them natively, composite the frames with smooth, dynamic transitions, run hardware-accelerated H.264 encoding, and finally hand back a ready-to-share MP4—either saved locally or sent straight to my upload API. Think of the workflow you might build with ffmpeg in the browser, but executed on-device with platform-specific performance and without round-tripping to a server. I’m expecting real-time or near real-time processing, clean audio sync, and minimal memory overhead. The solution must be exposed to JavaScript through a clean React Native bridge so...

I need a dependable, end-to-end solution that grabs CoinDCX “Expert Picks” the moment they are published and forwards the payload to a webhook I will provide, formatted as clean JSON. I’m open to either avenue you find most robust: • an Android-based mobile app scraper that leverages Accessibility Suite to read the live feed, or • a direct API workflow you uncover or engineer that can be polled at a sensible interval. Whichever route you choose, the system must handle spotty internet, temporary API errors, and device restarts without losing data or sending duplicates. Think exponential back-off, local caching, and resumable queues. To prove you actually read this, please start your proposal with the word 'BANANA'. If this word isn't the v...

I need an Android-only app that stops the endless scroll on Facebook, Instagram and TikTok, while giving users a live view of exactly how long they spend on each of those platforms. The core idea is simple: whenever the user activates Focus Mode inside the app, vertical scrolling, shorts, reels or any other auto-play feed in the three selected social media apps must be completely blocked until the timer ends or the user explicitly unlocks it with a PIN. Real-time tracking is essential. The moment any of the three apps comes to the foreground, a counter should start and update on a small overlay or notification, then roll straight into a dashboard that shows current session length, total time today and historical charts. No scheduled daily or weekly batches—everything updates instant...

I need a focused Android build that lets users sign up or log in securely and receive real-time push notifications. The core of the job is to: • set up robust user authentication (email / password and social login options are both fine as long as they follow current Android best practices); • wire the app to a reliable push service—Firebase Cloud Messaging is my default choice, though I’m open to an alternative if you can justify it. Everything else—UI polish, extra features, store submission—can follow later. For now, I want a clean, well-structured codebase that I can extend. Please use Kotlin where possible, document the key classes, and make sure the build runs without errors in Android Studio. Deliverables 1. Full Android Studio project folder re...

I’m planning a new mobile application and I’d like a single developer to take it from concept to publication on both the App Store and Google Play. The core deliverable is a fully functioning app that runs smoothly on iOS and Android, complete with source code and any necessary backend integration. Because I don’t have a hard deadline, we can focus on clean architecture, thorough testing, and an intuitive user interface rather than rushing features. I’m open to discussing the tech stack you feel most comfortable with—whether that’s React Native, Flutter, Swift + Kotlin, or another modern framework—as long as maintenance and future scaling are straightforward. If you have a solid track record of building cross-platform apps, especially those that ...

I’m building an Android app that must ship with truly robust, “ethical-hacker-grade” protection. The single most important piece is a custom security module that monitors everything users do inside the app and flags anything suspicious. Here’s what I need you to deliver: • A lightweight, unobtrusive activity-monitoring component that captures user behaviour events in real time. • Intelligent tracking logic: distinguish normal navigation from potentially risky actions, then push those events to my existing backend through secure, encrypted calls. • Clear, well-structured code (Kotlin or Java) plus concise documentation so I can maintain and extend the module later. • A quick demonstration APK and companion README showing how to plug the c...

I’m looking for end-to-end development of a mobile application for both Android and iOS, together with a fully integrated website. All three surfaces—Android, iOS and web—should draw from the same back-end so that a user who signs up or makes a change in one place sees it instantly everywhere else. Here’s what matters most to me: • One code-base per platform that feels truly native in speed and UX. I’m happy to use React Native, Flutter, Swift/Kotlin, or another modern stack you can justify. • A web front-end that mirrors the app’s functionality, built with a current framework such as React, , Vue, or an equivalent you prefer. • A clean, well-documented API layer (REST or GraphQL) that powers both the apps and the site, with secure au...

I’m planning a new mobile application and I’d like a single developer to take it from concept to publication on both the App Store and Google Play. The core deliverable is a fully functioning app that runs smoothly on iOS and Android, complete with source code and any necessary backend integration. Because I don’t have a hard deadline, we can focus on clean architecture, thorough testing, and an intuitive user interface rather than rushing features. I’m open to discussing the tech stack you feel most comfortable with—whether that’s React Native, Flutter, Swift + Kotlin, or another modern framework—as long as maintenance and future scaling are straightforward. If you have a solid track record of building cross-platform apps, especially those that ...

I rely on an auto-clicker to keep the Ola Driver app running smoothly, but the latest Ola update now shows a screen-wide blocker that stops any touch automation. I need a developer who can give me back that hands-free convenience. Here’s what I’m after: if you can simply unblock my current auto-clicker, great. If that proves impossible, then I’m happy to commission a brand-new Android app that reproduces the same auto-click features while cleanly bypassing the new blocker. I’m unsure whether I still have full source code for the existing tool, so please plan for both scenarios. Core requirements • Seamless auto-click functionality inside the newest Ola Driver build • Reliable bypass of the overlay/blocker screen introduced in the recent update &bul...

Our Kotlin-based CRM app already records and attaches sales calls to the correct lead cards without a hiccup on Samsung and Xiaomi devices. The problem appears on OnePlus, Google Pixel, Oppo and several other models where recording never starts or the audio file is lost before it can be linked to the lead. I need the feature to behave consistently across as many Android phones as technically possible while staying fully compliant with the latest Google Play call-recording policies. The codebase is clean Kotlin with MVVM and a Room database layer; you’ll have direct access to the existing Git repository and my QA device logs. Once the recording layer is solid, I’d like to keep improving the app together—new UI screens, polish on existing flows and a few fresh modules are ...

I am building a one-stop utility app for Android where users can clear their bills, top up services, and even handle basic transport needs—everything coded natively in Kotlin. The very first milestone is the Billing flow, so your primary focus will be a smooth, secure bill-payment experience. While Billing is the core feature, the codebase must already be structured so I can plug in additional Recharge options—Mobile, DTH, Internet—and a Transport module without rewriting the architecture later. Clean MVVM patterns, Jetpack components, and a maintainable folder structure are therefore essential. Deliverables (milestone 1) • Kotlin Android Studio project with Material-compliant UI • Complete Billing workflow: login/registration, service selection, amount ...

I’m dealing with an Android-only application that suddenly locked me out: the user IDs are no longer recognised and the usual password-recovery flow fails. I need someone to trace the root cause and restore full access. The job involves: • Inspecting the current login and recovery logic (server side and client side). • Fixing whatever prevents IDs and passwords from being validated or reset. • Making sure the solution works on typical Android versions without introducing new crashes or security gaps. Please deliver clear steps or updated code so I can reproduce the fix in future releases.

I need someone to wire up RevenueCat inside my existing Android application. The account is already live and configured on the RevenueCat dashboard, so the focus is strictly on the in-app work: adding the SDK, connecting it to Google Play Billing, fetching offerings, unlocking entitlements, and making sure purchase events flow cleanly to the backend. The project finishes when purchases can be made on a test track, entitlements are granted or revoked automatically, and the subscriber info is accurately reflected in RevenueCat. All code must compile on the current Android Studio version, follow Kotlin best practices, and be clearly commented so I can maintain it later.

I need a straightforward Android app that lets users earn real cash by watching video ads, with payouts sent directly to their bank accounts. Core flow • New users register or sign in. • They watch curated video ads—no banners or interactive formats, just videos. • Each completed view adds an amount to their in-app balance. • When a user reaches a minimum threshold, they submit withdrawal details and I approve the transfer to their bank. What I’m looking for • Clean, modern Android UI built in either Kotlin or Java. • Integration with a reliable video-ad network (AdMob or a comparable SDK) and accurate tracking of view completion. • Secure backend (Firebase, Supabase, or your recommended stack) to store user data, ad-view history, ...

I need a complete Android & iOS marketplace developed from the ground up, inspired by platforms such as Wallapop or Vinted. Users will register and log in exclusively with their phone number; the flow must include SMS verification and the usual protections against account fraud and duplicate numbers. Core experience • Buyers and sellers interact through a built-in real-time chat so deals can be closed without leaving the app. • After every transaction both parties leave a rating and written review that permanently shows on the user’s profile. • Push notifications keep everyone up to date on new messages, offers, and status changes. Payments All transactions run through an in-app escrow system: the buyer’s money is held securely until items are confi...

I already mapped every screen and interaction in a Figma file; now I need a skilled Android developer to bring that design to life as an offline-first billing application. Core scope • Invoice generation – users must be able to create, edit, preview, and share invoices even with no internet connection. PDF export and sequential invoice numbers are part of the flow. • Customer management – add, search, update, and view a customer’s past invoices locally. Because the app must work reliably without connectivity, please plan on a lightweight local database (Room/SQLite or a comparable approach), careful state handling, and background sync hooks so I can later add cloud backup if I choose. I will provide: • Complete Figma design and UX specs. • F...

I need an Android-only application that lets me record purchases, instantly total them, and then share each person’s share with friends in just a tap. The flow I have in mind is straightforward: enter an item, assign it to one or more people, have the app keep a running subtotal and grand total, and finally push the results out through the native share sheet (WhatsApp, SMS, email, etc.). Core functions
 • Billing & totaling: a clean screen for adding items, prices, quantity, tips or taxes, with automatic calculations.
 • Sharing with friends: once the bill is closed, the app should generate an easy-to-read breakdown that I can send or export (PDF, text, or link—whichever is fastest to implement). Tech notes
 • Native Android (Android Studio, Kotlin or Jav...

I’ve already built and released a fully working React JSX mobile app called “Traffic Stop Rights Guide.” It shows drivers exactly what their civil rights are during police traffic stops and, when granted permission, taps into location services to surface state-specific information. Now I need the same product packaged as true native apps—Swift/SwiftUI (or Objective-C) for iOS and Kotlin/Java for Android—submitted all the way through to live listings on the Apple App Store and Google Play Store. The visual design, screens, and overall flow must remain pixel-consistent with the current React build; no UI changes are required beyond what each store’s guidelines mandate. Both platforms should behave identically, and no extra iOS-only or Android-only featu...

Android application is done in console account but i come not further with last steps to send it to google

I need a mobile application built specifically for Android. I already have a general concept in mind but have not yet nailed down the exact feature set, so I’d like your help shaping the functional requirements, designing a clean user interface, and coding a reliable, maintainable solution from the ground up. Here’s what I expect at a minimum: • Complete Android Studio project with well-commented Kotlin or Java code • One signed APK or AAB ready for Play Store submission • Brief setup/run instructions If you have a solid track record in Android development and can guide me through best practices for performance, security, and future scalability, I look forward to collaborating.

I need a mobile app built specifically for Android. The project is strictly app-focused—I’m not after a web or desktop version. An experienced app developer who understands Android guidelines, Kotlin or Java, Android Studio, and the full publishing workflow is essential because the end goal is a production-ready release on Google Play. Core expectations • A fully functional APK and AAB ready for Play Store submission • Clean, well-commented source code that I can compile locally • Brief setup documentation outlining dependencies, build steps, and release procedure The user interface should follow current Material Design practices, and performance on common devices must remain smooth. Any libraries or third-party services you plan to integrate should be op...

I’m planning a new mobile application and I’d like a single developer to take it from concept to publication on both the App Store and Google Play. The core deliverable is a fully functioning app that runs smoothly on iOS and Android, complete with source code and any necessary backend integration. Because I don’t have a hard deadline, we can focus on clean architecture, thorough testing, and an intuitive user interface rather than rushing features. I’m open to discussing the tech stack you feel most comfortable with—whether that’s React Native, Flutter, Swift + Kotlin, or another modern framework—as long as maintenance and future scaling are straightforward. If you have a solid track record of building cross-platform apps, especially those that ...

I wanted to ask you something: I need a website for bookings and showcasing available services, but I don't prefer apps. I prefer a website with a main link: when a business owner wants to join me, they just enter their name, and the site automatically generates a username, password, and link that allows customers to log in.

I need an Android application that pulls together business audits, complete client history, field-staff tracking and billing in one place. Audit module - Customizable audit forms I can edit from an admin panel - In-app photo uploads attached to each checklist item - Automatic PDF report generation right after submission Workforce module - Real-time location tracking while a worker is on duty - Daily activity log that syncs even when the phone is offline - Task assignment with live status updates so I can monitor progress Billing & client records - Generate professional bills directly from the completed audit - Store every visit, photo and note under the client’s profile with quick search The app should sync smoothly online/offline, send push notificati...