Browse categories
Explore
Fiverr Pro
English
$
USD
I will debug and fix bugs, issues and crashes in the android apps
Senior Android Engineer with over 8 years building high performance mobile apps
Need an Android app issue fixed fast? I’m Muhammad Hasnat, a Senior Android Developer with over 7 years of experience and 600+ completed projects—rated 5 stars by 475+ happy clients! I specialize in s...
Level 2
Has met high performance criteria and has a proven track record for meeting client expectations.
Highly Responsive
Known for exceptionally quick replies
About this Gig
MESSAGE BEFORE ORDERING: Share your Android issue for accurate quote & timeline.
450+ 5-STAR REVIEWS | 8+ Years Android Expertise
Specialized in rapid Android bug fixes using Kotlin, Flutter, and Java. I deliver production-ready solutions that eliminate crashes and optimize performance.
WHAT I FIX:
- App crashes (startup, runtime, ANR)
- API 36 / targetSdk compliance & updates
- Google Maps & GPS integration
- Firebase (FCM, Auth, Firestore, Analytics)
- SQLite & Room database errors
- Payment gateways (Stripe, PayPal)
- Login/Signup authentication flows
- Network issues (Retrofit, API calls)
- Memory leaks & performance optimization
- UI/UX bugs & layout issues
- AdMob integration & ad crashes
- Play Store rejection fixes
- Multi-device compatibility
- Push notification debugging
MY APPROACH:
Root cause analysis with documentation
Clean code following MVVM architecture
Comprehensive testing before delivery
Post-delivery support included
TECH STACK:
Kotlin Java Flutter Jetpack Compose Coroutines Room Retrofit Firebase
GUARANTEE:
Bug-free delivery with 100% satisfaction. I solve root problems, not symptoms, preventing future issues.
Clients I’ve worked with
Flikshop
Delivery & Shipping Services
I fixed more than 10 bugs in this app, making it work better and without any crashes. I improved the design and made it work on different devices. It's now safer and faster.
Apr 2023-May 2023
My Portfolio
FAQ
What do you need from me?
Source code (GitHub/ZIP), detailed bug description, steps to reproduce, and any error logs from Android Studio or Firebase Crashlytics.
Can you update my app to API 36?
Yes! I specialize in targetSdk updates and ensuring Play Store compliance with the latest Android requirements.
Do you offer emergency/urgent fixes?
Absolutely. Select my 24-hour express delivery package for critical production issues.
What if the bug isn't fixed?
I guarantee bug-free delivery. If issues persist, I continue working at no extra cost until resolved.
Can you work with existing team/code?
Yes, I integrate seamlessly with existing projects, maintain code standards, and provide detailed documentation.
Reviews
488 reviews for this Gig
| (478) | ||
| (7) | ||
| (0) | ||
| (1) | ||
| (2) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J jcbranch
Australia
Muhammad was fantastic. Quick to respond. Friendly and professional really awesome to work with
Up to $50
Price
1 day
Duration
H 
Seller's Response
Helpful?K kfeel_app
South Korea
Muhammad went above and beyond to fix a very complicated issue that had been blocking my app updates for months. He responded quickly, communicated clearly, and solved everything through remote support with great professionalism. I truly appreciate his deep understanding, patience, and dedication. Thanks...
Up to $50
Price
1 day
Duration
Helpful?B 
beboutit70
Repeat Client
United States
There is no other developer on fiverr that can match this mans professionalism,politeness,attention to detail and always goes beyond what is expected.I cannot thank you enough.Until next time.
$50-$100
Price
3 days
Duration
Helpful?R 
ruzuhax877
Azerbaijan
good developer
Up to $50
Price
1 day
Duration
Helpful?B beboutit70
Repeat Client
United States
This developer is my go to,Always has the answer for the dilemma I'm in.Thanks much really appreciate your work & effort.
$50-$100
Price
1 day
Duration
Helpful?
Reviews
488 reviews for this Gig
| (478) | ||
| (7) | ||
| (0) | ||
| (1) | ||
| (2) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J jcbranch
Australia
Muhammad was fantastic. Quick to respond. Friendly and professional really awesome to work with
Up to $50
Price
1 day
Duration
H Seller's Response
Helpful?K kfeel_app
South Korea
Muhammad went above and beyond to fix a very complicated issue that had been blocking my app updates for months. He responded quickly, communicated clearly, and solved everything through remote support with great professionalism. I truly appreciate his deep understanding, patience, and dedication. Thanks...
Up to $50
Price
1 day
Duration
Helpful?B beboutit70
Repeat Client
United States
There is no other developer on fiverr that can match this mans professionalism,politeness,attention to detail and always goes beyond what is expected.I cannot thank you enough.Until next time.
$50-$100
Price
3 days
Duration
Helpful?R ruzuhax877
Azerbaijan
good developer
Up to $50
Price
1 day
Duration
Helpful?B beboutit70
Repeat Client
United States
This developer is my go to,Always has the answer for the dilemma I'm in.Thanks much really appreciate your work & effort.
$50-$100
Price
1 day
Duration
Helpful?
