
Upgrade your existing Android, iOS, or Flutter app
Delivery in
3 days
- Views 63
Amount of days required to complete work for this Offer as set by the freelancer.
Rating of the Offer as calculated from other buyers' reviews.
Average time for the freelancer to first reply on the workstream after purchase or contact on this Offer.
What you get with this Offer
Does your app crash, freeze, or perform slowly? I can help!
With years of experience fixing critical bugs and upgrading apps in Android (Kotlin/Java), iOS (Swift), and Flutter, I'll ensure your mobile application functions as intended.
Here's what I can help you with:
- Fixing crashes or critical bugs
- Resolving UI glitches and inconsistencies
- Performance and memory optimizations
- Updating dependencies or SDK versions
- Implementing small new features
- API integration issues or refactoring
Let's make your app stable, fast, and production-ready again.
With years of experience fixing critical bugs and upgrading apps in Android (Kotlin/Java), iOS (Swift), and Flutter, I'll ensure your mobile application functions as intended.
Here's what I can help you with:
- Fixing crashes or critical bugs
- Resolving UI glitches and inconsistencies
- Performance and memory optimizations
- Updating dependencies or SDK versions
- Implementing small new features
- API integration issues or refactoring
Let's make your app stable, fast, and production-ready again.
Get more with Offer Add-ons
-
I can deliver all work in 1 day
Additional 1 working day
+$59 -
I can add a new feature/module
Additional 3 working days
+$94 -
I can upload to App Store/Play Store
Additional 2 working days
+$47
What the Freelancer needs to start the work
- App source code (Git repo or ZIP)
- A list of issues or bugs
- Any crash logs or screenshots (if available)
- Platform details (Android/iOS/Flutter)
- Your expected outcome or app goals
We collect cookies to enable the proper functioning and security of our website, and to enhance your experience. By clicking on 'Accept All Cookies', you consent to the use of these cookies. You can change your 'Cookies Settings' at any time. For more information, please read ourCookie Policy
Cookie Settings
Accept All Cookies