You will get App Bugs Fixed & Performance Improved | Android, iOS, Flutter
Top Rated
Project details
I will help you fix bugs, crashes, and performance issues in your mobile app to make it stable, fast, and smooth for users. Whether your app is crashing, slow, or behaving unexpectedly, I’ll identify the root cause and fix it properly.
I focus on clean fixes, better performance, and long-term stability, not quick patches.
What I Can Fix
• App crashes & errors
• App freezing or slow performance
• UI bugs & layout issues
• API & data-related issues
• Memory leaks & performance bottlenecks
• App Store rejection issues (iOS)
How I Work
1. Review your app issue and logs
2. Identify the root cause
3. Fix bugs using best practices
4. Optimize performance & stability
5. Test and deliver a smooth build
Platforms
• iOS (Swift / SwiftUI)
• Android
• Flutter (if needed)
What I Need From You
• App source code or repository access
• Issue description or crash logs
• Device / OS details
I focus on clean fixes, better performance, and long-term stability, not quick patches.
What I Can Fix
• App crashes & errors
• App freezing or slow performance
• UI bugs & layout issues
• API & data-related issues
• Memory leaks & performance bottlenecks
• App Store rejection issues (iOS)
How I Work
1. Review your app issue and logs
2. Identify the root cause
3. Fix bugs using best practices
4. Optimize performance & stability
5. Test and deliver a smooth build
Platforms
• iOS (Swift / SwiftUI)
• Android
• Flutter (if needed)
What I Need From You
• App source code or repository access
• Issue description or crash logs
• Device / OS details
Platform
AndroidApp Type
Hybrid AppDevelopment Technology
FlutterApp Purpose
Chat, Dating, Delivery, Finance, Entertainment, Education, Maps & Navigation, Productivity, Restaurant, ShoppingExpertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $499
These options are included with the project scope.
$499
- Delivery Time 20 days
- Number of Revisions 2
- App Store Upload
- Source Code
Frequently asked questions
150 reviews
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MM
Mina M.
May 5, 2026
Flutter
SF
Stephen F.
Apr 2, 2026
Fitzgerald Financial Mobile App Development
great work overall!
WS
Watkins S.
Mar 17, 2026
30 minute consultation
rehired second time. need help with superwall paywall. got the help i needed. great working with daxesh!
WS
Watkins S.
Mar 13, 2026
30 minute consultation
Super knowledgeable about paywalls & compliance with apple.
SK
Sinan K.
Mar 11, 2026
Experienced Flutter Developer - IOS / Android
Great developer. Always available and helpful. I would recommend him.
About Daxesh
Mobile App Developer | iOS, Android, Flutter, SwiftUI, AI Apps
100%
Job Success
Surat, India - 2:36 pm local time
I’m a Senior Mobile App Developer with 10+ years of experience building high-quality iOS, Android, and cross-platform applications for startups, SaaS platforms, and scaling businesses.
I’ve delivered apps used by thousands of users across global markets.
Most developers build apps.
I build products that scale, get funded, and generate real business results.
If you want a technical partner who understands product, growth, and scalability, you’re in the right place.
⭐️ 𝗖𝗼𝗿𝗲 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀
✅ Mobile Development
- iOS (Swift, SwiftUI), Android, Flutter, React Native (Expo)
- Pixel-perfect UI implementation with smooth performance
- Custom animations, transitions, and polished user experience
- Deep debugging, performance tuning, and stability improvements
✅ Backend & Infrastructure
- Firebase, Supabase, PostgreSQL, MySQL
- AWS & Google Cloud (GCP)
- Scalable backend architecture and API design
- REST APIs (Node.js, Python, Django, PHP)
✅ Monetization & Payments
- In-App Purchases & Subscription Systems
- Integration with RevenueCat, Superwall, Adapty
- Stripe payment integrations (one-time & recurring)
- Paywall optimization, pricing strategy & lifecycle handling
✅ Analytics & Growth
- Mixpanel, Firebase Analytics, AppsFlyer, Branch
- Funnel tracking, conversion optimization & retention strategy
- A/B testing and data-driven product decisions
✅ AI & Advanced Features
- AI integrations, chatbots & LLM-powered experiences
- Voice-based features & real-time interactions
- Integration with Gemini APIs & OpenAI APIs
- ML-based personalization & automation
✅ Deployment & Scaling
- App Store & Play Store publishing (compliance-ready)
- CI/CD pipelines and automated deployments
- Performance optimization & scalability planning
- Long-term maintenance, updates & feature scaling
🚀 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗜𝗻
🌟 AI-Powered Mobile Apps (Chat, Automation, LLM APIs)
🌟 Health, Fitness & Wellness Apps
🌟 Telehealth & Remote Care Apps
🌟 Mental Health, Meditation & Self-Care Apps
🌟 Real-Time Video & Live Streaming Platforms
🌟Real Estate & Property Management Apps
🌟 Video Sharing & Creator Economy Apps
🌟 E-Learning & EdTech Platforms
🌟 E-Commerce & Marketplace Apps
🌟 On-Demand Service Apps (Taxi, Food, Delivery, Booking)
🌟 Chat, Messaging & Social Networking Apps
🌟 SaaS & Subscription-Based Mobile Platforms
🌟 Fintech, Payments & Personal Finance Apps
🌟 Coaching, Consulting & Personal Brand Apps
🌟 IoT & BLE-Enabled Smart Device Applications
⚡ 𝗪𝗢𝗥𝗞𝗜𝗡𝗚 𝗔𝗣𝗣𝗥𝗢𝗔𝗖𝗛
• Strategy-first approach with clear product direction
• Clean, maintainable architecture designed to scale
• Honest timelines and realistic expectations
• Consistent updates with zero communication gaps
• Long-term partnership mindset, not one-time delivery
• Limited client deal to maintain quality and attention
🎁 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧
- A strategic technical partner, not just a developer
- Honest feedback (even if it saves you money)
📩 𝗟𝗘𝗧'𝗦 𝗧𝗔𝗟𝗞
Get a free consultation via Upwork message — I’ll review your idea, identify gaps, recommend the right approach, and give you a clear execution plan.
AI Development, AI App Development, AI-Powered Mobile Apps, Custom AI Solutions, AI Agents Development, AI Integrations, AI Chatbot Development, Mobile App Development, Mobile App Developer, iOS App Development, iOS App Developer, Android App Development, Android App Developer, Flutter App Development, Flutter App Developer, React Native App Development, Cross-Platform App Development, Hybrid App Development, Custom Mobile App Development, Application Development, Mobile Apps, App Development, MVP Development, Full Stack Developer, Full Stack Development, Web Development, Web Developer, Full Stack Web Development, MERN Stack Developer, Node. js Development, SaaS Product Development, Custom Software Development, E-commerce Development
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Steps for completing your project
After purchasing the project, send requirements so Daxesh can start the project.
Delivery time starts when Daxesh receives requirements from you.
Daxesh works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Review
I review your app issues, requirements, crash logs, or performance concerns to clearly understand the problem and scope of work.
Bug Fixing & Optimization
I identify the root cause, fix bugs, improve app performance, and ensure stability using clean and reliable solutions.