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$
USD
I will fix bugs and crashes in your android or ios mobile app
Senior Mobile App Developer, 6 Years Experience Flutter, IOS, Android
I'm Waseem Ullah, expert in Flutter & Native Android development with 6 years of experience creating high-quality mobile applications.
🚀 Specialties:
- Flutter & Native Android (Java/Kotlin)
- Clean...
About this Gig
App crashing? Login not working? Screens freezing or buttons doing nothing? I'll find the bug, fix it properly, and tell you what caused it.
I'm a Level One seller with 66+ completed projects. I don't patch symptoms I trace the root cause so the same bug doesn't come back next week.
I fix:
- App crashes & freezes (with crash log analysis)
- Login, signup & authentication issues
- Buttons, forms & features not working
- UI & layout bugs on different screen sizes
- API & data loading problems
- Firebase issues (auth, database, notifications)
- Slow screens & performance problems
I work with: Android (Java/Kotlin) and Flutter apps for Android & iOS.
Why choose me?
- 66+ projects delivered
- Root-cause fixes, not band-aids
- Every fix tested before delivery
- Short report included: what broke, why, and how I fixed it
Before you order: send me a short description or screen recording of the bug. I'll confirm the fix, the package you need, and the timeline usually within the hour.
Your app should just work. Let's make that happen.
FAQ
What do you need from me to fix the bug?
A description or screen recording of the problem, plus your source code (ZIP or Git access). Crash logs (Crashlytics, Play Console) help me work faster if you have them.
My app is live on the Play Store / App Store and crashing for users. Can you help?
Yes — this is urgent work and I treat it that way. Send me your crash reports and I'll prioritize finding the cause. I fix the code; you push the update.
What counts as "one bug"?
One distinct problem — e.g., "login button does nothing" or "app crashes when opening profile." If one root cause fixes several symptoms, that's still one bug — you don't pay per symptom.
Do you work with apps built by another developer?
Yes, most of my bug-fix orders are apps someone else built. I read the code, find the issue, and fix it without breaking anything else.
What if you can't reproduce or fix the bug?
If I can't fix it, I'll say so honestly and we cancel — you don't pay for no result. That's why I ask to see the bug before you order.
Is my source code confidential?
Completely. I never share or reuse client code, and I'm happy to sign an NDA.
Can you also add new features while fixing bugs?
Small tweaks alongside a fix, sure. Bigger features belong in my Flutter development gig — message me and I'll send a custom offer.
Reviews
5 reviews for this Gig
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
G 
gamony
Repeat Client
India
As usual a great experience, He is fast we mean very fast at doing work.
Helpful?H 
hamzasmug113
Repeat Client
Morocco
The best in android.
Helpful?A andreaskan
Greece
Very good and hard working seller
Helpful?H hamzasmug113
Repeat Client
Morocco
When working with devs, you should really know who you working with. I've been working with an other seller who destroyed several codes I provided, instead of fixing it properly. However, this guy just saved my everything. He really knows what he does even if he is a new seller. And GUESS WHAT? I'VE...
Helpful?N 
nurebrah
South Africa
Very Kind and good seller thanks
Helpful?
Reviews
5 reviews for this Gig
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
G gamony
Repeat Client
India
As usual a great experience, He is fast we mean very fast at doing work.
Helpful?H hamzasmug113
Repeat Client
Morocco
The best in android.
Helpful?A andreaskan
Greece
Very good and hard working seller
Helpful?H hamzasmug113
Repeat Client
Morocco
When working with devs, you should really know who you working with. I've been working with an other seller who destroyed several codes I provided, instead of fixing it properly. However, this guy just saved my everything. He really knows what he does even if he is a new seller. And GUESS WHAT? I'VE...
Helpful?N nurebrah
South Africa
Very Kind and good seller thanks
Helpful?
