You will get App Debugging Specialist: Fixing Bugs & Improving Code Qualit
Top Rated
Top Rated
Project details
Are you tired of frustrating app crashes and errors? As a seasoned app debugging specialist, I'm dedicated to providing comprehensive bug fixing and code optimization services for iOS and Android applications. With years of experience in mobile app development, I possess the expertise to identify and eliminate a wide range of software bugs and performance issues.
My services include:
Thorough code analysis to pinpoint errors and inefficiencies.
Comprehensive testing to ensure app stability and functionality.
Efficient bug fixing to resolve issues promptly and effectively.
Code optimization to improve app performance and user experience.
Detailed bug reports to document the resolution process.
By choosing my services, you can expect a reliable, high-quality app that delivers a seamless user experience. Let's work together to make your app a success!
My services include:
Thorough code analysis to pinpoint errors and inefficiencies.
Comprehensive testing to ensure app stability and functionality.
Efficient bug fixing to resolve issues promptly and effectively.
Code optimization to improve app performance and user experience.
Detailed bug reports to document the resolution process.
By choosing my services, you can expect a reliable, high-quality app that delivers a seamless user experience. Let's work together to make your app a success!
Programming Languages
PHP, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $100
These options are included with the project scope.
$100
- Delivery Time 3 days
- Number of Revisions Unlimited
- Bug Investigation
- Fix Documentation
- Detailed Code Comments
34 reviews
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TK
Trent K.
Apr 18, 2026
Flutter LED App Development
Muhammad has been a great partner in building the first version of the Medalite app. He handled a fairly complex project involving Flutter development, BLE communication with hardware, and custom light sequencing features, and was able to bring it all together into a working product.
He’s reliable, communicates clearly, and is open to feedback and iteration, which was especially important as the scope evolved. I appreciated his willingness to work through technical challenges and adjust based on changing requirements.
Like any complex build, there were moments where we had to clarify direction or refine implementation details, but overall he stayed committed and worked through issues professionally.
I’d recommend Muhammad to anyone looking for a solid developer for mobile apps, especially projects that involve hardware integration or custom functionality.
He’s reliable, communicates clearly, and is open to feedback and iteration, which was especially important as the scope evolved. I appreciated his willingness to work through technical challenges and adjust based on changing requirements.
Like any complex build, there were moments where we had to clarify direction or refine implementation details, but overall he stayed committed and worked through issues professionally.
I’d recommend Muhammad to anyone looking for a solid developer for mobile apps, especially projects that involve hardware integration or custom functionality.
LB
Lawrence B.
Mar 2, 2026
iOS Teleprompter App – Quick Questions
Great communication, professionalism, and commitment to solving difficult technical problems. The team was reliable, collaborative, and genuinely invested in the success of the project.
TE
Tr E.
Feb 24, 2026
Senior Full-Stack Developer (React Native/Next.js) for Final App Polishing & Deployment for 2 apps
There is someone for everyone, from newbies to pros, and i believe Muhammad is for both. Muhammad was professional, straightforward and considerate when conducting my audits. Although we were not able to come to an accord on pricing, he was very understanding and attempted to accommodate me as best he could. I would highly recommend communicating with him to see if he is a fit for you.
SG
Sean G.
Feb 10, 2026
Support/maintenance & UI/UX Improvements
BK
Brandon K.
Dec 10, 2025
IoT App Development Specialist Needed
About Muhammad
AI-Powered Mobile App Developer | React Native & Flutter | BLE & LLM
100%
Job Success
Naperville, United States - 2:11 am local time
AI-Powered React Native & Flutter Developer | BLE Hardware + LLM Integration Specialist
Most mobile apps fail not because of bad code but because the developer couldn't handle what came after the screens. BLE sync breaks. The AI feature needs to talk to real hardware. The App Store review gets rejected. That's exactly the gap I've built my career around closing.
I'm Muhammad. 7 years building production mobile apps, $100K+ earned across 38 contracts on Upwork, and a Top Rated Plus track record that speaks for itself.
WHAT I ACTUALLY BUILD:
✅ React Native apps, from blank repo to App Store, end-to-end
✅ Flutter apps with BLE/NFC hardware integration (custom protocols, firmware handshake, real-time sync)
✅ AI-powered mobile features with OpenAI, Claude, Gemini APIs wired directly into native UX (not bolted on top)
✅ LLM + RAG pipelines built into mobile, not web wrappers
✅ Node.js backends designed for mobile clients
✅ Native iOS (Swift) when cross-platform is the wrong call
SHIPPED & VERIFIED:
• Medalite: Flutter app with custom BLE light therapy mask. Real-time hardware sync, firmware handshake. $12,300. ⭐ 5 stars.
• Chaser: Long-term React Native engagement platform. $21K+. Client kept building.
• iOS Teleprompter App: High-complexity Swift + React Native, real-time text rendering. $6,500. ⭐ 5 stars.
• AI Analytics for iOS: LLM-powered insights wired into a native iOS app. 135 hours. ⭐ 5 stars.
• Audio App MVP: Full Flutter build. Client returned for more.
Industries: Healthcare · Fitness · Fintech · IoT · AI/ML
I respond within 10 to 15 minutes. I don't ghost milestones.
If the scope is clear, send it and I'll give you a number.
If it's complex, I'll ask the right questions and we'll figure it out together.
Steps for completing your project
After purchasing the project, send requirements so Muhammad can start the project.
Delivery time starts when Muhammad receives requirements from you.
Muhammad works on your project following the steps below.
Revisions may occur after the delivery date.
Code analysis