Expert Kotlin Code Review for AI-Built Apps
Kotlin is the preferred language for Android development and increasingly used for server-side JVM applications. AI tools generate Kotlin that often misuses coroutines, ignores null safety advantages, and lacks proper lifecycle management.
Common Kotlin issues we find
Real problems from Kotlin codebases we've reviewed.
Coroutine scope mismanagement
Launching coroutines with GlobalScope or unstructured scopes that outlive their intended lifecycle, causing memory leaks and zombie operations.
Null safety bypasses with !!
Using the non-null assertion operator (!!) to force past null checks instead of safe calls (?.) or elvis operator (?:), causing NullPointerExceptions.
Missing lifecycle awareness
Android components that don't respect Activity/Fragment lifecycle, continuing operations after destruction and causing crashes or memory leaks.
Insecure SharedPreferences
Storing authentication tokens and sensitive data in plain SharedPreferences instead of EncryptedSharedPreferences or Android Keystore.
Blocking the main thread
Running database queries, network calls, or file operations on the main dispatcher instead of Dispatchers.IO, causing ANR dialogs.
ProGuard/R8 misconfiguration
Missing keep rules that cause runtime crashes in release builds when reflection-based libraries have their classes stripped.
Kotlin production checklist
Key checks before deploying your Kotlin app.
Structured concurrency with viewModelScope or lifecycleScope
No !! operator — use safe calls, elvis, or require()
Lifecycle-aware components (no leaking Activities/Fragments)
Sensitive data in EncryptedSharedPreferences or Keystore
I/O operations on Dispatchers.IO
ProGuard/R8 rules tested in release builds
Network security config restricts cleartext traffic
Proper dependency injection (Hilt/Koin)
Not sure if your app passes? Our code audit ($19) checks all of these and more.
Our Kotlin services
Security Review
Deep security analysis of your application — from API endpoints to database access.
Fix Bugs
We diagnose and fix bugs in AI-generated apps — from mysterious crashes to features that just don't work right.
Refactor Code
Clean up messy, duplicated, and hard-to-maintain code without breaking what already works.
Performance
Identify and fix performance bottlenecks — slow page loads, laggy interactions, and expensive operations.
AI tools that generate Kotlin code
Start with a self-serve audit
Get a professional review of your Kotlin project at a fixed price.
Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 checks
- SSL/TLS analysis
- Security headers
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerabilities
- Code quality review
- Dependency audit
- AI pattern analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Get a clear plan
We respond in 24 hours with scope, timeline, and cost.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Is AI-generated Kotlin code ready for the Play Store?
AI tools produce functional Kotlin but frequently misuse coroutines, bypass null safety with !!, and store secrets insecurely. A review ensures your app meets Play Store standards and doesn't crash in production.
Can you fix coroutine issues in my Android app?
Yes. We restructure coroutine scopes, fix dispatcher usage, ensure lifecycle awareness, and eliminate memory leaks from unstructured concurrency.
How do you improve Kotlin code quality?
We enforce null safety, implement structured concurrency, add proper dependency injection, optimize ProGuard rules, and ensure idiomatic Kotlin patterns throughout.
Related resources
Need help with your Kotlin project?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.