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I need an experienced mobile developer to track down and eliminate a persistent bug that is disrupting normal use of my existing app. The issue shows up in live builds on both Android and iOS, and I can provide the full project, crash logs, and clear reproduction steps as soon as we start. Your task is to diagnose the root cause, implement a clean, stable fix, and supply a brief summary of what went wrong so I can avoid similar problems in future updates. Automated and manual testing must confirm the patch works across current OS versions before delivery. Deliverables • Updated source code or merge-ready pull request • Short technical report outlining the cause and the fix • Test evidence (screenshots or short video) proving the bug is resolved on Android and iOS If you are comfortable diving into an existing code-base quickly and turning around a solid fix, I look forward to working together.
Project ID: 40675576
33 proposals
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Active 5 hours ago
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33 freelancers are bidding on average ₹22,163 INR for this job

This job is a good match for your experience with existing mobile apps, debugging, and cross-platform testing. Here’s a concise proposal, comfortably under 1,500 characters: Hi, I can help diagnose and permanently resolve the bug affecting your existing app on both Android and iOS. I have 9+ years of mobile development experience, with strong experience working on existing production codebases, investigating crashes, API issues, and platform-specific problems. My approach is to focus on the root cause rather than applying a temporary workaround. I’ll start by reproducing the issue using your steps and reviewing the crash logs and affected code paths. From there, I’ll trace the problem, implement the smallest clean and maintainable fix, and verify that related functionality is not affected. My process includes: * Reproducing and isolating the issue * Reviewing logs and relevant code paths * Identifying the root cause * Implementing a stable, merge-ready fix * Manual and automated testing where applicable on both platforms * Providing a brief technical summary of the cause, fix, and testing performed You’ll receive updated source code or a merge-ready Pull Request, along with test evidence and a clear explanation of what caused the issue. I’m comfortable jumping into unfamiliar codebases and can start by reviewing the project, crash logs, and reproduction steps.
₹12,500 INR in 7 days
5.9
5.9

Hi, I can quickly investigate and fix the persistent issue in your existing Android and iOS app without introducing unnecessary changes. I’ll review the project, crash logs, and reproduction steps, reproduce the bug, trace the root cause, and implement a clean, stable fix. I’ll test the fix on current Android and iOS versions using both automated and manual testing, then provide the updated source/merge-ready PR, a concise technical report, and screenshots or video showing the issue is resolved. Best regards, Hamza Ehsan
₹13,000 INR in 4 days
3.8
3.8

Hi, I’d be happy to investigate and fix the persistent bug affecting your Android and iOS app. I can review the existing codebase, crash logs, and reproduction steps to identify the root cause and implement a clean, stable solution. What I’ll deliver: - Root-cause analysis - Production-ready fix for Android and iOS - Manual and automated testing - Regression testing on current OS versions - Updated source code or merge-ready PR - Short technical report explaining the issue and fix - Screenshots or short video showing the bug is resolved on both platforms I’ll focus on fixing the underlying issue rather than applying a temporary workaround, and I’ll make sure the fix is properly tested before delivery. Bid: ₹26999 fixed price I’m ready to start immediately and can begin by reviewing the project and reproduction steps. Best regards
₹26,999 INR in 7 days
3.5
3.5

With 8+ years of experience in developing a wide range of cutting-edge mobile applications, I am extremely confident in my ability to trace, diagnose, and resolve the bug currently plaguing your app. My proficiency extends across both Android and iOS platforms as well as specific knowledge in Flutter and React Native, ensuring that the issue is addressed irrespective of the system it stems from. I understand that a persistent bug can hamper not only an app's functionality but also user trust. I assure you my troubleshooting skills will be solely dedicated to providing a clean, stable fix for this problem. Additionally, my disciplined time management approach will ensure a swift turnaround while maintaining the highest quality standards. What separates me from other freelancers is not just my technical skills but also my dedication to proactive problem-solving. I'll not only isolate and fix the bug but also provide you with a detailed technical report highlighting its cause, the precise solution implemented and steps you can take to prevent it in future updates. Providing value beyond immediate resolutions is what I believe distinguishes an expert from others in this field - an expertise that I am confident you will find indispensably useful to quickly get your application back on track.
₹19,000 INR in 7 days
3.1
3.1

Hi, I’m Karthik, a mobile technology professional with 15+ years of experience in Android, iOS, debugging and production issue resolution. I can quickly analyze your existing codebase, crash logs and reproduction steps to identify the root cause and deliver a clean, stable fix—not a temporary workaround. I’ll provide: • Root-cause analysis & production fix • Updated source / merge-ready PR • Android & iOS compatibility testing • Automated + manual regression testing • Screenshots/video proving resolution • Brief technical report covering cause and fix I’m comfortable working with existing codebases and can start immediately. Once I review the project and reproduce the issue, I can provide a clear fix plan and turnaround estimate. Looking forward to resolving this efficiently. Warm Regards, Karthik Resonite Tech
₹35,000 INR in 7 days
3.1
3.1

This bug is still hitting people on Android and iOS. That has to stop. I can start right now. Send the project, the crash notes, and the steps that make it fail. I will find what is breaking, put in a clean fix, and give you a short note of what went wrong plus proof it is gone on both phones. You get a live working sample of the fix in 24-48 hours. I will not rebuild your app. I will only stop the break and confirm it stays gone. Share the crash notes and the steps that trigger it, and I start today?
₹18,000 INR in 1 day
2.6
2.6

Hi, I can investigate this as a root-cause debugging task, not just apply a temporary workaround. Once you provide the project, crash logs and reproduction steps, I’ll trace the affected flow through the existing codebase, isolate the underlying cause, and implement a clean fix without unnecessarily changing unrelated functionality. After the fix, I’ll verify the affected flow on both Android and iOS, using targeted manual testing plus regression/automated checks where appropriate. I’ll also test the surrounding functionality to make sure the patch hasn’t introduced another issue. You’ll receive: • Updated source code / merge-ready changes • A concise technical explanation of the cause and fix • Android and iOS test evidence • Final regression verification I have 8+ years of professional experience with mobile applications, including Flutter, native Android, React Native, APIs, debugging and production issue resolution. I also have hands-on experience with manual QA, functional/regression testing and release support, so I can handle both the fix and its verification. I can start immediately. Once I have the reproduction steps and logs, I’ll focus first on isolating the cause before making changes.
₹12,500 INR in 3 days
2.4
2.4

Bugs that surface on both Android and iOS in live builds usually point at shared JS or a native module mismatch, not platform code. I'll reproduce from your steps and logs first, isolate the root cause with a failing test, then ship a merge-ready PR with a short write-up and pass/fail evidence on both platforms. 1) Is the codebase React Native, Flutter, or fully native? 2) Does the crash tie to a specific screen, action, or OS version in the logs? Message me and we can lock the plan down. Shayan
₹21,250 INR in 5 days
1.5
1.5

I can take this as a focused debugging and root-cause investigation rather than making unnecessary changes to the existing app. I’ll first reproduce the issue using your exact steps, review the Android/iOS crash logs and trace the affected code path to identify the actual cause. Once confirmed, I’ll implement the smallest clean fix and regression-test the affected flow across current Android and iOS versions. You’ll receive the updated source/merge-ready PR, a short technical report explaining the cause and fix, and screenshots or a short video showing the resolved behaviour on both platforms. Before estimating the effort, I’d like to review the reproduction steps, crash logs, and know whether the app is built with Flutter, React Native, or native Android/iOS.
₹25,000 INR in 7 days
1.1
1.1

Hi, I can help diagnose and fix the persistent Android/iOS bug in your existing mobile app. I’ll start by reproducing the issue from your provided steps and crash logs, then trace it to the actual root cause rather than applying a temporary workaround. Once identified, I’ll implement a clean and stable fix while keeping the existing functionality and architecture intact. My approach will include: Reviewing the existing source code and crash logs Reproducing the issue on Android and iOS Identifying the root cause and affected code path Implementing and reviewing the fix Regression testing on current Android and iOS versions Providing screenshots/video as evidence of the fix Delivering the updated source code or a merge-ready PR Providing a concise technical report explaining the cause, fix, and prevention recommendations I’m comfortable working with an existing codebase and getting up to speed quickly. I’ll focus on making the fix reliable and maintainable, not just making the reported reproduction case pass. Please share the project, crash logs, and reproduction steps, and I can begin investigating immediately. Regards, Narendra
₹13,000.99 INR in 2 days
0.7
0.7

Hi there, I get it—bugs can be a real pain, especially when they disrupt your app's normal use. I've tackled similar issues in the past, efficiently tracking down problems and implementing clean fixes that stick. You can count on me to diagnose the root cause swiftly and deliver a stable solution. I noticed you need someone who can provide a brief summary of the issue and ensure the fix is confirmed through both automated and manual testing. I’m all about keeping things clean, professional, and user-friendly, so I’ll make sure everything is seamless for your users. I specialize in mobile development and have a knack for diving into existing codebases with ease. You can expect speedy communication and a fast turnaround on this project. Let me know if you are available for a quick chat! Regards, Wonita
₹12,500 INR in 7 days
0.0
0.0

Hi, I can quickly investigate and fix the Android/iOS bug by reviewing the existing code, crash logs, and reproduction steps to identify the root cause. I’ll implement a clean, stable fix, test it across current OS versions, and provide updated source/PR, a concise technical report, and screenshots/video proving the issue is resolved. I’ll focus on a reliable fix without introducing regressions.
₹15,000 INR in 7 days
0.0
0.0

Hi, New on Freelancer — 20 years of development experience behind us. We're taking our first few projects here at a fraction of our normal rate purely to build our review history. You get senior agency work at junior pricing; we get a review. Straight trade. persistent bugs on both Android and iOS often stem from asynchronous data handling issues, especially if the problem appears in live builds. I'd start by analyzing the app's error logs and crash reports to pinpoint any threading issues. Can you provide access to the app's code repository and any recent error logs?
₹25,000 INR in 7 days
0.0
0.0

Hi, I’m a Flutter & mobile developer with 7+ years of experience working with production Android/iOS applications, debugging release builds, APIs, Firebase, native platform issues, and app deployment. I can take this on as a root-cause debugging task, not just apply a workaround. My approach would be: • Review the existing codebase and confirm the framework/architecture • Reproduce the issue using your exact steps and crash logs • Trace the problem to the actual root cause • Implement a clean, minimal fix without introducing regressions • Test the fix on current Android and iOS versions • Provide before/after test evidence • Deliver the updated source or merge-ready changes • Include a concise technical report explaining the cause and solution Since the issue occurs in live builds on both platforms, I’ll specifically check for platform-specific configuration, lifecycle, dependency, API, and release-build differences where relevant. I’m comfortable taking over an unfamiliar existing codebase and getting to the root of difficult bugs quickly. If you provide the crash logs, reproduction steps, and project, I can start by identifying exactly where the failure occurs before making changes.
₹28,000 INR in 7 days
2.3
2.3

Hello, I am Karthik B from Resonite Technologies, and we are eager to assist with your mobile app bug fix requirement. Our team of experienced mobile developers has a proven track record in diagnosing and resolving complex issues in both Android and iOS applications. We understand the urgency in addressing persistent bugs that affect user experience. Our approach will involve a thorough investigation of the provided crash logs and reproduction steps to pinpoint the root cause. We will implement a clean and stable fix, ensuring it is rigorously tested both manually and automatically to confirm functionality across current OS versions. Upon completion, we will deliver the updated source code or a merge-ready pull request, along with a concise technical report detailing the cause of the issue and the implemented fix. Additionally, we will provide test evidence, including screenshots or a short video, demonstrating that the bug has been successfully resolved on both platforms. We are committed to delivering high-quality solutions efficiently, and we look forward to the opportunity to work together. Best regards, Karthik B Resonite Technologies
₹55,000 INR in 7 days
0.0
0.0

I am a Manual QA Tester with experience in testing Web and Mobile applications. I can perform functional testing, UI/UX testing, smoke testing, sanity testing, regression testing, and retesting. I can create test cases, identify bugs, and provide detailed bug reports with screenshots and videos. I am dedicated to delivering quality work and can start immediately.
₹25,000 INR in 7 days
0.0
0.0

I can handle this as a focused cross-platform bug-fix sprint. Milestone 1 (funded before work): reproduce the failure from your crash logs and steps on Android and iOS, isolate the root cause, and provide a written diagnosis. Milestone 2: implement the smallest maintainable fix plus regression coverage. Final milestone: verify current OS builds, deliver screenshot evidence, a merge-ready PR, and a concise cause/fix report. I am a senior Flutter and full-stack engineer with 14+ years of production delivery experience, including Alibaba and DiDi, and I am comfortable entering unfamiliar codebases, tracing lifecycle/state/API failures, and validating fixes across platforms. Total bid is INR 22,000 in 5 days. Before award, please send the framework/version and a sanitized crash signature so I can confirm the exact test matrix in writing. Work proceeds through repository commits and written async updates; I start only after Milestone 1 is funded.
₹22,000 INR in 5 days
0.0
0.0

Hi, I can help investigate and fix the persistent issue in your mobile application across Android and iOS. I have professional experience developing and maintaining Flutter mobile applications, including debugging production issues, integrating REST APIs, implementing authentication flows, and supporting Google Play Store deployment. My approach would be to first reproduce the issue using the provided steps and crash logs, trace the root cause through the existing codebase, implement the fix while minimizing regression risk, and then verify the result on both Android and iOS. I will provide: - The updated source code / merge-ready changes - A brief technical report explaining the root cause and fix - Testing evidence showing the issue is resolved I’m comfortable working with an existing codebase and investigating issues rather than simply applying a workaround. Estimated delivery: 5 days. Best regards, Kresna
₹20,000 INR in 7 days
0.0
0.0

I have a total experience of 10.7 years. Out of which 8.7 years is into native iOS and the rest has been on hybrid technologies. I have good debugging skills and I am sure that I will be able to find the issue and fix it.
₹25,000 INR in 7 days
0.0
0.0

Hi, I can take this on. I’ll begin by reproducing the issue from the crash logs and steps you provide, then trace it through the shared and platform-specific code paths to identify the actual cause. After implementing the fix, I’ll test the affected flow on both Android and iOS and provide the updated source, clear test evidence, and a short explanation of what failed and how it was corrected. I’m available to start immediately and can complete the work within 5 days.
₹14,000 INR in 5 days
0.0
0.0

Jaipur, India
Member since Aug 28, 2026
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