App Rescue & Codebase Stabilization: Fix, Finish & Ship Your App
We diagnose, debug, refactor, and stabilize stalled, buggy, or half-built mobile applications—including apps built with AI tools—getting them production-ready and approved on app stores.
Engineering rigor tailored for scalable products
Hundreds of founders find themselves stuck with an unfinished, unstable mobile app: their previous agency ghosted them, freelance developers wrote spaghetti code, or rapid AI scaffolding tools produced an app that looks fine in demos but crashes constantly on real hardware.
Our App Rescue & Codebase Stabilization service is engineered specifically to step in, audit the existing code, isolate critical flaws, and create a clear engineering roadmap to get your app across the finish line and published to the App Store and Google Play.
We do not recommend tearing down and rewriting code unless absolutely necessary. We prioritize stabilization: fixing memory leaks, patching store rejection violations, completing broken payment and push notification flows, and establishing reliable backend data connections.
When You Need an App Rescue Engagement
The fastest way to recover stranded capital and turn a stalled project into a live, reliable mobile product.
Your mobile application was built using AI code generation tools (Cursor, v0, Lovable) and now crashes on real devices, has missing state handling, or cannot pass store review.
Your previous agency or freelancer missed deadlines, delivered buggy code, and left you with an incomplete repository.
Your app was rejected by Apple or Google for guideline violations, security flaws, or broken account flows.
Your live mobile app suffers from high crash rates, slow startup times, or technical debt that prevents adding new features.
What We Check in an App Audit
Every engagement is structured around making sure implementation decisions match the actual product requirements.
Comprehensive Code & Architecture Audit
Detailed static analysis, memory leak detection, and vulnerability audits identifying root causes of app instability.
Store Rejection Remediation
Rapid resolution of Apple and Google guideline rejections (Guideline 2.1, 4.3, 5.1.1, Account Deletion, Privacy Manifests).
AI-Generated App Stabilization
Refactoring brittle AI-coded mobile apps into maintainable, typed, production-ready codebases with proper error boundaries.
SDK & Dependency Upgrades
Upgrading deprecated libraries, outdated Gradle/CocoaPods dependencies, and breaking OS compatibility changes without regressions.
Our step-by-step engineering process
Transparent weekly sprints, direct GitHub access, and zero corporate overhead.
Comprehensive 48-Hour Codebase Audit
We clone your repository and run deep static analysis, profiling memory leaks, dependency security vulnerabilities, architecture anti-patterns, and store compliance risks.
Prioritized Remediation Roadmap
We deliver an actionable engineering report categorizing issues into Critical (blockers & crashes), Major (UX/UI flaws), and Minor (code quality), with fixed remediation estimates.
Targeted Bug Fixing & Refactoring
We resolve crash loops, upgrade outdated SDKs, repair broken authentication/payment flows, and optimize slow database queries.
Real-Device Quality Assurance
We verify every corrected flow across physical iOS and Android hardware, checking background states, network drops, and memory usage.
App Store Submission & Approval
We package the stabilized build, resolve any remaining reviewer inquiries, and guide the app to live store release.
Production-grade tooling built for speed and security
Codebases Rescued
- ✓ Flutter & Dart
- ✓ React Native (CLI & Expo)
- ✓ Native Swift / iOS
- ✓ Native Kotlin / Android
Audit Tools
- ✓ Sentry
- ✓ SonarQube
- ✓ Android Profiler
- ✓ Xcode Instruments
- ✓ LeakCanary
Backend Rescues
- ✓ Firebase Cloud Functions
- ✓ Supabase Auth & RLS
- ✓ Node.js / Express
- ✓ Stripe Payments
Real-world execution: Security App Client
How we solve technical challenges and deploy production apps into users' hands.
Passy App Credential Architecture Stabilization
Refactored local storage and state management flows to eliminate data corruption bugs and ensure 99.9% crash-free offline sessions.
Read full case study ↗Project: "Passy App Credential Architecture Stabilization"
Client: "Security App Client"
Key Impact: "Zero-Crash Stability · Offline-First Local Encryption"
Status: "Shipped to App Store & Google Play"
// Verified by Founder & Architect Ahsan Farooq
Questions about app rescue & stabilization
Have specific technical requirements or platform questions? We answer honestly before any commitment.
Will we need to scrap our existing codebase and start from scratch?
In over 80% of rescue projects, a full rewrite is NOT required. We isolate and fix the 20% of broken architectural bottlenecks (state leaks, unhandled API errors, SDK version conflicts) that cause 80% of crashes.
What is included in the 48-hour codebase audit?
You receive an objective engineering report reviewing repository structure, third-party dependency vulnerabilities, memory profiling, store policy compliance risks, and an itemized remediation roadmap with cost and timeline estimates.
Can you fix an app built with AI coding assistants (like Cursor, v0, or ChatGPT)?
Yes. AI tools are great for initial mockups, but often omit edge-state handling, memory disposal, offline caching, and Apple/Google store policy compliance. We harden AI code into production software.
How quickly can Apperdev begin working on our rescued app?
We can typically begin the 48-hour codebase audit within 1 business day of receiving Git repository access.
Need senior App Rescue & Stabilization on your product?
Share what exists today, your target platforms, and your core technical challenge. We will review your architecture and provide an honest estimate within 24 hours.
Discuss your app ↗