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Freelancer Project: Convert Existing Attendance Web/PWA Source Code into Android App Project Title Convert Existing React/TypeScript Attendance PWA into Professional Android App – Full Source Code Required Project Description I already have a complete working Attendance & Employee Management application source code. Current technology: - React 19 - TypeScript - Vite - Convex backend/database - PWA - Existing authentication system - Existing web/admin dashboard I need an experienced Android developer to create a professional Android application based on my existing system and source code. This is not a new application from scratch. I will provide the existing source code to the selected developer. Important Requirement My existing live application must NOT be changed, modified or disturbed. The new Android app must be developed and tested separately. Existing User Roles The current system supports: - Super Admin - Admin - Viewer - Employee - Team Leader - Telecaller - Field Officer The Android app should support the required employee/user roles based on the existing system. Main Android Features The Android application should include the existing features such as: - Secure Login - Employee Dashboard - Attendance - GPS/location-based attendance - Check-In / Check-Out - Attendance history - Attendance regularization - Leave application - Holiday list - Salary information - Employee profile - Digital Employee ID Card - QR Code - Notifications - Customer/lead-related features - Calling summary - Target reports - MIS reports - Help & Support - Camera access where required - Phone dialer integration - File/PDF/Excel functions where applicable All existing important functions should be reviewed from the supplied source code before development. Android Requirements I need a proper Android app that: - Works smoothly on modern Android phones - Has a professional mobile UI - Supports required Android permissions correctly - Supports GPS/location - Supports camera - Supports notifications - Supports phone dialer integration - Handles Android back button correctly - Handles internet/network errors properly - Maintains login/session securely - Works after app restart - Supports different screen sizes Developer must follow current Android and Google Play policies. Backend The existing project currently uses Convex. Developer should first inspect the supplied source code and confirm whether: 1. The existing Convex backend can be safely used for the new Android app, or 2. Any Hercules-specific dependency needs to be replaced. The new Android development must not affect my existing live application or database. Any migration or backend change must be discussed and approved before implementation. Technology Preference Because my current application is React + TypeScript, React Native is preferred, but I am open to another professional solution if the developer can clearly explain the benefits. I do not want only a basic WebView APK presented as a complete Android rebuild without informing me. If Capacitor/WebView is proposed, the developer must clearly explain this before the project is awarded. Deliverables The developer must provide: - Complete Android application - APK for testing - Final signed APK - Play Store-ready AAB - Complete editable Android source code - Backend/API source changes, if any - Database/backend configuration instructions - Build instructions - Deployment documentation - All project files - All credentials/configuration created specifically for the new system - Bug fixing before final acceptance I must have 100% ownership of the final source code. There must be no developer-controlled account, hidden access, license lock, expiry, or dependency that prevents me from using the application independently. Source Code I already have the existing application source package and will provide it to the selected developer for inspection. The developer must understand the existing structure before making major changes. Before I Award the Project Please answer these questions in your bid: 1. Have you worked with React, TypeScript and Convex? 2. Can you develop this as a proper Android application? 3. Would you recommend React Native, Capacitor or another solution? Why? 4. Can you keep my existing live system completely untouched? 5. Can you provide APK + AAB + complete editable source code? 6. Can you integrate GPS, camera, notifications and phone dialer features? 7. Will I receive 100% ownership of all code? 8. Are there any monthly third-party costs? 9. What is your total price? 10. What is your realistic delivery time? 11. Will you provide post-delivery bug support? 12. Please show examples of similar Android applications you have developed. Please do not bid unless you can provide complete source code and safely work without affecting my existing live system.
Project ID: 40648423
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I can convert your existing React/TypeScript Attendance PWA into a professional Android app while ensuring that your live application remains unchanged. My first step will be to review the source code and confirm the compatibility of the Convex backend. Based in Toronto, I work efficiently and am always available for communication throughout the project.
₹7,000 INR in 4 days
3.2
3.2
14 freelancers are bidding on average ₹8,063 INR for this job

Hi there, I’ve reviewed your Android app requirements and would love to collaborate on your project. With 5+ years of experience in native Android development, I specialize in building high-performance, user-friendly apps with clean UI, optimized architecture (MVVM/MVI), and seamless API integration. I’ll start with a clear project roadmap, provide regular progress updates, and ensure the app is thoroughly tested for stability and performance before launch. Let’s connect to discuss your app idea in detail — I’m ready to bring your vision to life! Best, Bhargav Android Developer | Kotlin & Java Expert
₹7,000 INR in 7 days
6.9
6.9

With my extensive skill set in API development and mobile app development, I'm confident that I'm the best fit to convert your existing Attendance Web/PWA into an efficient, user-friendly Android app without affecting your live application. With over 200 successfully delivered projects like yours in my 8+ years of experience, I understand the intricacies involved in preserving functionality while optimizing for a native Android experience. Notably, with my expertise in React & TypeScript, along with my solid background using Flutter in Mobile App Development. I can offer a highly efficient and performant solution using React Native. However, I am also open to exploring alternative professional solutions if any benefits are made clear. I guarantee that you won't be given just a basic WebView APK, but a fully built Android app tailored to work seamlessly on all modern Android phones without disruptions or complications. My job isn't completed until you're satisfied, so rest assured that I won't walk away until you've tested every feature comprehensively and given the final approval. For complete transparency and autonomy, you'll receive a full editable Android source code along with all project files and credentials/configuration for the new system. Let's get started on turning your existing application into an even more powerful tool!
₹8,999 INR in 7 days
5.0
5.0

With expertise in Android app development and React/TypeScript, I understand your need to convert your existing Attendance Web/PWA source code into a professional Android app seamlessly. My experience in converting web applications to mobile platforms and ensuring separate development and testing aligns perfectly with your requirements. How can we ensure a seamless transition for existing user roles to the Android app without affecting the live system? Regards, Yogesh Kumar
₹3,220 INR in 8 days
5.0
5.0

Drawing from my extensive 1000+ character of experience in Mobile development and web development, and with clear understanding of your project's prerequisites, I confirm my capability to professionally execute the conversion of your existing React/TypeScript Attendance PWA into a fully-functional Android App. I have achieved great success in developing similar projects with an emphasis on maintaining pre-existing functionality alongside delivering new features. To illustrate, my grasp on React Native, TypeScript and MVC frameworks will ensure that the new Android app not only mirrors the existing components and functions aptly but also meets modern technological standards and Google Play policies. My proficiency extends beyond the mere conversion as I provide complete documentation, deployment guidelines and configuration information to ensure an easy post-development experience for you. Furthermore, I prioritize being a reliable partner by guaranteeing bug fixing before final acceptance, offering free support for three months post-delivery, and most vitally, ensuring 100% ownership of the final source code. Equipped with technical knowledge fortified by a passion for exceptional service delivery, I'm ready to give your reactive tech-demanding project the unrivaled quality attention it deserves
₹17,000 INR in 7 days
5.2
5.2

Hi, I can convert your React/TypeScript Convex Attendance PWA into a proper native Android app using React Native, keeping your live system and Convex backend completely untouched during development and testing. You will receive APK, signed AAB, and full editable source with 100% ownership. I will wire GPS check-in, camera, notifications, and dialer through native modules, not a WebView wrapper. Questions: 1) Can you share the source package so I can confirm Convex reuse before we finalise scope? Looking forward to discussing further. Regards, Shayan.
₹1,650 INR in 4 days
2.2
2.2

Hello, This is a strong fit for our React/TypeScript experience. Since your existing system is already built with React 19, TypeScript, Vite and Convex, I’d recommend React Native for the Android application rather than rebuilding the entire product from scratch or hiding the PWA inside a WebView. I’d first inspect the supplied source and create a completely separate development environment so the existing live application and production database remain untouched. We would then verify whether the current Convex backend can safely serve the mobile application before making any backend changes. The Android app would cover authentication/session persistence, employee dashboards, GPS attendance/check-in/out, history, leave/holidays, profiles, digital ID/QR, notifications, camera, phone dialer, reports and appropriate file/PDF functionality. I’ll also handle Android permissions, back-button behaviour, network failures, secure session handling, different screen sizes and restart scenarios, followed by real-device testing. Deliverables would include the complete editable source, testing APK, signed release APK/AAB, build/deployment documentation and any approved backend changes. There would be no developer-controlled lock or hidden dependency, and ownership would remain with you. I’d first review the existing codebase before confirming the final timeline, cost and any third-party recurring services. Best regards, Deepak
₹7,000 INR in 7 days
2.0
2.0

I have extensive experience with React, TypeScript, and building production Android applications. I'll convert your Convex-backed attendance PWA into a professional native Android app using React Native, which preserves your existing tech stack while delivering true native performance and Play Store compliance. I can safely isolate all development from your live system by creating separate backend credentials and database references, then integrate GPS, camera, biometric auth, notifications, and phone dialer features exactly as your source code specifies. You'll receive complete editable source code, signed APK, Play Store-ready AAB, build documentation, and 30 days of post-launch bug fixes with zero third-party licensing lock-in or monthly costs. Timeline is 40-50 days for full development and testing, with portfolio examples available upon selection.
₹1,515 INR in 7 days
0.0
0.0

Hello, I’m a Full-Stack & Mobile App Developer with 2+ years of practical experience building mobile/web apps, REST APIs, authentication, dashboards, GPS features and business systems. Your project is a strong match for my experience. I understand the existing React 19 + TypeScript + Vite + Convex application must remain completely untouched. I will first inspect the source code, understand the roles, authentication and backend, then develop and test the Android app separately. I can implement: • Secure login & role-based access • Employee dashboard • GPS attendance & Check-In/Check-Out • Attendance history, leave & holidays • Employee profile, ID & QR code • Notifications • Camera & phone dialer integration • Reports and customer/lead features • Network/error handling • APK & Play Store-ready AAB • Complete editable source code & documentation After reviewing the codebase, I would recommend React Native because it fits your existing React/TypeScript stack. I will not simply wrap the PWA in a WebView. Your live system and database will remain untouched, with development performed separately. You will receive 100% ownership of the final source code with no hidden access or license locks. I’m available to start immediately and provide post-delivery bug support. Thank you.
₹7,000 INR in 16 days
0.0
0.0

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