We fix, stabilize, and modernize production mobile apps
Senior mobile engineers for startups that can't afford a crash. From ancient SDKs to messy migrations, we get your app back on track.
How We Work Together
Straightforward engagement models designed for clarity, progress, and performance.
App Health Audit
- Deep-dive code & infra review
- Crash log & performance analysis
- Full store compliance check
Stability as a Service
- Proactive priority bug fixes
- OS & Third-party SDK updates
- Firebase & Cloud infrastructure upkeep
- Continuous release support
Rescue & Modernization
- Legacy application revival
- Major stack & framework migrations
- Deep architectural refactoring
- Zero-downtime technical overhauls
Our Expertise
Senior-led engineering specializing in technical rescue and stability for production-grade mobile applications.
Modernizing Old Code
We upgrade outdated SDKs and fix broken dependencies so your app stays stable. No downtime, no breaking changes — just a clean, modern codebase that's easy to work with.
- Upgrading iOS & Android SDKs
- Fixing broken React Native & Flutter plugins
- Resolving performance bottlenecks
- Safe rollbacks if things don't go as planned
- Zero-downtime deployments
Switching Frameworks
Moving from Native to Flutter? Or React Native to Swift? We handle the heavy lifting while keeping every feature perfectly intact. Same app, better foundation.
- Native to Cross-Platform migrations
- Framework-to-framework porting
- Performance-first architecture
- Ensuring feature parity
- Full QA across all devices
How We Work
A proven process designed for zero-downtime stability and long-term maintainability.
We check the code
First, we look under the hood. We'll audit your codebase and crash logs to find exactly where the issues are hiding and give you a straight-up roadmap with no fluff.
We map the mess
We identify every single dependency and outdated plugin. By the end, we'll know exactly which versions are causing trouble and how to fix them without breaking anything else.
The Gameplan
We create a step-by-step migration plan. You'll see exactly what we're changing and why before we touch a single line of your production code.
Real Work
Our engineers get to work, implementing fixes bit by bit. You'll get daily updates and can check our progress on a staging environment anytime.
Testing & Launch
We test everything on real devices to catch even the smallest bugs. Then we'll help you ship the update and stick around to make sure it stays stable.
Technology Expertise
Deep expertise across the entire mobile ecosystem.
iOS
Swift/Objective-C
Android
Java/Kotlin
Flutter
Cross-Platform
React Native
Cross-Platform
Fastlane
Tooling
CI/CD
Tooling
Legacy to Modern
How we transformed a failing React Native app into a stable, performant Flutter application.
The Challenge
- React Native 0.61 with 200+ outdated dependencies
- Frequent crashes affecting 15% of users
- Unable to ship new features for 8 months
- App Store rejection due to deprecated APIs
The Results
- Migrated to Flutter 3.x in 12 weeks
- Crash rate reduced to 0.3%
- 40% performance improvement
- Zero downtime during migration
"They saved our business. What seemed impossible became a smooth, well-executed migration."
— Engineering Lead, Series B SaaS Platform
Let's Talk
Ready to stabilize your mobile app? Schedule a technical consultation with our senior engineers.
Meet the Team
Elangovan
Solutions Architect
Balaji
Head of Engineering
Krisna
Software Engineer
Need to talk now?
contact@getappfix.com