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My current app is solid but feature-thin. I’m ready for a full upgrade that introduces brand-new capabilities while elevating the underlying functionality end-to-end. The brief outline is simple: • New features: this is the priority. Tell me what’s technically feasible, then build it. • Functionality overhaul: refactor or extend the existing code so the new features run smoothly, scale well, and don’t break what already works. Process I have in mind 1. Audit the present build and document the gaps. 2. Propose an implementation plan with milestones. 3. Code, test, and integrate each feature incrementally (unit tests + user acceptance). 4. Final hand-off with updated source, release builds, and a short knowledge-transfer session. You’ll get full repository access and any current documentation the moment we agree on the scope. I’m flexible on tools and frameworks as long as the final product is reliable, easy to maintain, and meets store submission guidelines. If this sounds like a challenge you’re ready to tackle, walk me through your approach and a realistic timeline and we can get started right away.
Project ID: 40746647
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Active 4 days ago
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48 freelancers are bidding on average ₹28,092 INR for this job

The primary goal is to systematically upgrade your existing app without disrupting current functionality—starting with understanding the architecture and identifying gaps, then integrating technically feasible features in a scalable manner, and finally delivering a store-ready release. Approach: I will conduct a technical audit of the repository and documentation to map out the architecture, dependencies, performance, and existing functionality. Based on this, I will provide a prioritized feature roadmap and milestones. Each feature will be implemented in a modular fashion and integrated incrementally, accompanied by unit tests, regression testing, and UAT. Special emphasis will be placed on backward compatibility and release validation to preserve existing behavior. Finally, I will deliver the updated source code, production release builds, documentation, and a knowledge-transfer session. 1. Is the app for iOS, Android, or both platforms? 2. Is an initial list of new features available, or do you require recommendations following the technical audit? 3. What are the current tech stack, backend, and existing CI/CD setup? 4. Is App Store/Google Play submission included in the scope?
₹12,500 INR in 7 days
4.6
4.6

Your app is at the stage where new features either compound growth or quietly introduce instability - your audit-first process is the right way to get the first outcome. I start with a full audit of the current build: architecture, dependency health, test coverage and API surface, then document the gaps and propose a milestone plan. Each feature is built incrementally behind clean module boundaries - refactoring existing code as we go rather than rewriting it, with unit tests per feature and user-acceptance checks before each merge. Backend and cloud stay stable: the API contract is preserved, performance is monitored for regressions, and release builds follow store submission guidelines. Handover includes updated source, release builds and a short knowledge-transfer session. Similar work: Jyotish AI, my live AI astrology app on Android and web, where I added AI-driven features onto an existing codebase and refactored the backend so new modules never broke what was already live. Two questions: which platform is the app on - native, Flutter or React Native? And which 2-3 features would you prioritise first? Happy to start with the audit as a short first milestone so you can judge the plan before committing to the full build.
₹30,000 INR in 14 days
3.7
3.7

Hi, I can review your existing app, identify areas for improvement, and add new features based on your requirements. I can also improve the existing code, integrate features step by step, test everything, and ensure the current functionality continues to work smoothly. I’ll provide the updated source code, release builds, documentation, and a brief handover. Thank you.
₹15,000 INR in 7 days
3.7
3.7

Drawing from my 5+ years of full-stack development experience, I am confident that I am the perfect fit for your project. As an Agile developer, I understand the importance of iterative development and incorporating feedback into the process. I'll start by auditing your current app, deeply exploring its gaps and then formulating an implementation plan with milestones that match your project objectives meticulously. Building on my proficiency in the aforementioned technologies, I assure you an upgraded app that is both reliable and easy to maintain. Not only will I add new features, but I'll also scrutinize and expand the existing code to ensure seamless functionality without breaking any working elements. My strong background in backend development means that scalability won't be a concern either. In addition to my technical skills, it is my collaborative approach that has helped me build long-term client relationships. Recognizing the value of clear communication and prompt delivery, I assure you not only full repository access but also timely updates throughout the project lifecycle alongside a seamless knowledge transfer session upon completion. I understand how vital this upgrade is for you and as such, am ready to devote all necessary resources and skills until we achieve your desired outcome. Let's build something amazing together.
₹37,499.99 INR in 7 days
3.8
3.8

Hello, I’ve worked on app upgrades where the first 1–2 days were used to audit the existing build, identify gaps, and prevent new features from breaking current functionality. I’ll review your codebase, define the upgrade milestones, and then build each feature incrementally with testing at every stage. The main focus will be adding new capabilities while keeping the app stable, scalable, and easy to maintain. You’ll receive the updated source code, release builds, tests, and a short hand-off session. If this approach matches your goals, I’d be happy to discuss the feature scope. Thanks, Dejan
₹30,000 INR in 6 days
3.5
3.5

As an experienced full-stack developer, I'm confident in my ability to take on the challenge of enhancing and upgrading your app's features and functionality. I approach projects with a meticulous planning process, just as you outlined. First, I'll thoroughly audit your current build, documenting gaps and proposing a well-structured implementation plan with clear milestones. This includes the important stage of refactoring or extending existing code to ensure it scales well while preserving stability. My broad range of skills across web, mobile, AI, APIs and integrations, Cloud/DevOps, and databases puts me in a solid position to provide versatile solutions for your project. I've worked on a diverse range of applications including e-commerce systems, CRMs, and trading platforms. All in all, by choosing me for this project, you're not only benefitting from my expertise in developing robust applications but also receiving exceptional project management skills that will ensure we meet deadlines without compromising quality. Let's get started on turning your feature-thin app into a feature-packed one!
₹12,500 INR in 3 days
3.3
3.3

Hi, At first glance, this looks straightforward but there’s usually one part that causes issues later. I’ve handled similar work before and can help you avoid that. Regards, Rajesh
₹12,500 INR in 7 days
3.0
3.0

Hi, I have 6+ years of full-stack development experience and can take your existing app through a complete feature and functionality upgrade without disrupting what already works. My approach: * Audit the existing codebase, architecture and current functionality * Identify technical gaps, bottlenecks and opportunities for new features * Recommend technically feasible features based on the current app * Prepare a milestone-based implementation plan * Refactor and improve existing code where required * Develop and integrate new features incrementally * Add unit testing, regression testing and support UAT * Optimize performance, scalability and maintainability * Prepare release builds and ensure store submission requirements are met * Provide updated source code, documentation and knowledge-transfer session I’ll work with your existing stack where practical rather than introducing unnecessary technology changes. The goal will be to improve the product while keeping the existing functionality stable. Once I review the repository, I can provide a realistic feature breakdown, timeline and milestone plan.
₹20,000 INR in 1 day
2.7
2.7

I can start right now I have checked the details and I like your structured 4-step process, especially pairing the functionality overhaul and refactoring with incremental testing so we don't break the current solid build while adding the new features. For the timeline, I typically audit the present build and map out the gaps in week one, then tackle the implementation plan and milestones before coding. One quick question before we dive in: which specific codebase or framework was the current app built on? lets do it
₹12,500 INR in 7 days
2.1
2.1

Hi, thanks for the clear outline. Your four steps (audit, plan, incremental build with tests, hand-off) are the right way to upgrade an app without breaking what already works. I'm a full-stack developer with 10+ years in PHP/Laravel, and I've shipped React Native/Expo apps to the App Store and Google Play, plus REST APIs, queues, and Google Cloud deployments. How I would approach it: - Audit: read the codebase, architecture, and dependencies, and document gaps, risks, and quick wins. - Plan: a short list of feasible new features, ranked by impact and effort, with milestones. - Build: one feature at a time on its own branch, with unit tests and your acceptance check before moving on. - Refactor only what each feature needs, so existing behavior stays stable and performance holds. - Hand-off: updated source, release builds, brief documentation, and a knowledge-transfer session in writing or over chat. One honest note: a full audit plus several features and store releases is larger than this budget. I suggest Phase 1 within it: the audit, the implementation plan, and the first priority feature (about 10 days). We then scope the later phases with real information about the code. What platform and stack is the app built on today (iOS/Android native, React Native, Flutter, web), and which new feature matters most to you?
₹37,500 INR in 10 days
0.0
0.0

I recently helped a business turn a similar idea into a clean, professional solution that was built around what they actually needed. I can help you achieve the same, with a solution that is reliable, user-friendly and built around your goals. I noticed you specifically need new features and a functionality overhaul. That’s an important part of getting this project right, and it’s something I can confidently handle. My expertise includes app development, code refactoring, and user acceptance testing. We also have 75+ 5-star reviews on similar projects and rank in the top 1% among 75 million users! I already have a few ideas for your project. Message me and I’ll share how I’d approach it. Regards, bhavnaramsing
₹28,150 INR in 7 days
0.0
0.0

Having had a decade long stint in the IT industry, I have acquired a unique set of skills and expertise that adds excellent value to this project. With my team at your disposal, we've got you covered in all the fronts you need- from new feature addition, functionality overhaul to addressing any gaps or issues that might come along. We would leverage this opportunity to audit your current build meticulously and plan an implementation process with realistic milestones to ensure clarity and progress. Our skills span a wide range and I’m confident that they align seamlessly with what you’re looking for in your app. Being proficient in Android, iOS, Java, PHP5, HTML5/CSS/Responsive Design amongst others will make the foundation sturdy for the robust features we would add as per mutual agreement. Moreover, our experience with E-commerce, CMS is quite beneficial in finding a clever method for optimizing store submission guidelines while making it easy to maintain. Added benefits? We provide effective cost project with cheap and well managed hosting and domain offers coupled with free 3 months support for existing development. A win-win! Let's bring your ideas to reality together. Give us the green signal and be assured of a dedicated team that delivers on time - usable codes that undergo diligent testing before the final hand-off. Rarity taken care of!
₹25,000 INR in 7 days
0.0
0.0

Your app needs a solid upgrade to add new features and improve functionality. I’ll start by auditing the current build to identify those gaps and potential issues. This will help me create a clear implementation plan with milestones, I’ll focus on refactoring the existing code while integrating the new features incrementally, making sure everything works well together. And I can have everything ready for you to test first—only create a milestone once you’re satisfied with the results. This way, you can see the improvements before any payment is made. My rate for this project is 24999 INR, and I’m ready to go ahead and start immediately. Looking forward to your response, Rajavel - Expert in app upgrades and feature integration.
₹24,999 INR in 10 days
0.0
0.0

Your app needs new features and a complete functionality upgrade to enhance its performance. Implementing a phased approach can ensure that new features are added smoothly while maintaining the stability of existing functionalities. This could involve incremental updates where each feature is developed, tested, and integrated step-by-step. I can quickly create a mockup of the proposed features along with a brief outline of the implementation plan for you to review before making any decisions. What specific new features are you most interested in adding first? Regards, CVDLFourie
₹18,750 INR in 7 days
0.0
0.0

Dear Sir/ Mam we are checked your Project details and your requirement and we are agree in doing this project with our team be on time line and quality service Thanks & Regards Team Qmax Software Solutions Jaipur
₹25,000 INR in 15 days
0.0
0.0

We recently completed a project that involved a comprehensive functionality upgrade, ensuring a seamless experience for users. Your focus on introducing new features while refining existing functionality aligns perfectly with our expertise. With a solid background in app development, I specialize in code refactoring and implementing scalable solutions. I’m proficient in various frameworks, ensuring that any new capabilities not only enhance user experience but also integrate flawlessly with your current system. My approach includes a thorough audit of your existing build, followed by a detailed implementation plan that prioritizes both performance and reliability. I would like to discuss your project in further detail. Best Regards, AlexanderWC
₹28,150 INR in 7 days
0.0
0.0

You said the app is solid but feature-thin, so I'd start where your step 1 does: audit the current build first and give you a written list of gaps, plus which new features are realistic and roughly how long each takes. I've been doing production work for 3 years. My job-search app Jobish (Flutter client, Laravel backend I built myself) has 10,000+ installs and a 4.6 rating on Google Play, and I handle the Play Store and App Store releases myself, including signing and target API updates. After the audit I'd split the work into milestones, one feature at a time, each tested before the next one starts, so nothing that already works breaks. Two questions: what's the app built with, and what does the backend run on? And do you already have a feature list, or should the audit include suggestions? Eldor
₹22,000 INR in 14 days
0.0
0.0

Hello, you want new features first and a refactor that does not break what already works, so I would start with the audit before promising any feature list. My plan: 1) Audit the current build and repository, document gaps and risks (days 1-3). 2) Agree a feature list with a feasibility note and milestones. 3) Build and test each feature incrementally, with unit tests and your acceptance after each one. 4) Refactor only the parts the new features depend on, so existing behavior stays intact. 5) Final hand-off: updated source, release builds ready for store submission, and a short knowledge-transfer session. I work in Flutter/React Native, Node.js backends and API integrations, and I will be honest about what is feasible before we start. Quote: 16,000 INR for the audit plus the first milestone block, 14 days; if the feature list turns out larger, we split it into paid milestones and I will tell you upfront. One question: what is the app built with (native iOS/Android, Flutter, React Native, web) and which 2-3 new features matter most?
₹16,000 INR in 14 days
0.0
0.0

I recently helped a client enhance their app with new features while ensuring a smooth functionality upgrade. I can do the same for your project, prioritizing the introduction of new capabilities while refining the existing codebase for better performance. My approach will include a thorough audit of your current app to identify gaps, followed by a detailed implementation plan with clear milestones. I will incrementally code, test, and integrate each feature, ensuring they work seamlessly together and maintain the integrity of your existing functionality. With 75+ 5-star reviews and a top 1% ranking among 75 million users, you can trust that I deliver reliable, maintainable solutions that meet all store submission guidelines. If you're looking for someone who can transform your vision into a polished final product, I’d be thrilled to collaborate with you. Regards, Wataaka
₹18,750 INR in 7 days
0.0
0.0

Your requirement for a feature-rich upgrade aligns perfectly with my approach. I would begin with a comprehensive audit of your current app, identifying gaps and areas for enhancement. This will inform a detailed implementation plan, allowing us to prioritize new features based on technical feasibility. For the functionality overhaul, I would refactor the existing codebase to ensure seamless integration of new features while maintaining the stability of current functionalities. Incremental coding and testing will ensure each addition is robust, with unit tests and user acceptance checks integrated into the process. Could you clarify which specific new features you envision as a priority? With that insight, I can provide a more tailored timeline for the project. Looking forward to your thoughts on this. Best Regards, Charl
₹28,150 INR in 7 days
0.0
0.0

Indore, India
Member since Mar 13, 2026
₹12500-37500 INR
$30-250 USD
₹12500-37500 INR
$30-250 USD
₹1500-12500 INR
₹12500-37500 INR
₹12500-37500 INR
$15-25 USD / hour
₹12500-37500 INR
₹12500-37500 INR
₹1500-12500 INR
₹12500-37500 INR
$15-25 USD / hour
₹12500-37500 INR
$30-250 USD
$15-25 USD / hour
₹1500-12500 INR