Mobile Architecture & Code Audits

Independent review of your mobile codebase—iOS, Android, Flutter, or React Native—to identify stability risks, performance bottlenecks, security vulnerabilities, and architectural debt. I deliver an actionable report with prioritized fixes and optional implementation support.

Perfect for teams inheriting legacy codebases, preparing for major releases, or experiencing unexplained crashes, poor performance, or App Store rejections.

What I Review

Architecture & Patterns: MVVM, VIPER, Clean Architecture, modularity
Crash & Stability: Crash reports, error handling, memory leaks
Performance: Startup time, scrolling, battery drain, network efficiency
Security: API security, data encryption, auth flows, PII handling
Code Quality: Test coverage, linting, documentation, tech debt
Dependencies: Outdated libraries, security patches, license compliance

Deliverables

Audit Report: Findings with severity ratings (Critical/High/Medium/Low)
Fix Plan: Prioritized action items with effort estimates
Architecture Recommendations: Refactoring roadmap for scalability
Security Checklist: OWASP Mobile Top 10 compliance review
Performance Baseline: Before/after metrics for improvements
Optional Pairing: Implementation support for critical fixes

Common Issues I Find

Crash Hotspots

Memory leaks, force-unwrapped optionals, unhandled exceptions, race conditions in async code. I analyze Firebase Crashlytics/Sentry reports and reproduce critical issues.

Performance Bottlenecks

Slow startup (5+ seconds), janky scrolling, excessive network calls, unoptimized images, synchronous I/O on main thread. Profile with Instruments/Android Profiler.

Security Vulnerabilities

Insecure API calls (no SSL pinning), hardcoded secrets, weak auth, PII stored unencrypted, lack of jailbreak/root detection. OWASP Mobile Top 10 compliance review.

Architecture Debt

Massive view controllers (1,000+ lines), tight coupling, no separation of concerns, missing tests, difficulty adding features. Recommend refactoring to MVVM/VIPER/Clean.

Audit Process

Kickoff (Day 1): Access to repo, crash/analytics dashboards, known pain points
Automated Analysis (Days 1-3): Static code analysis, dependency audit, security scans
Manual Review (Days 3-7): Architecture patterns, critical paths, edge cases, performance profiling
Testing (Days 7-10): Manual QA, device testing, stress testing, security probes
Report Delivery (Days 10-14): Findings presentation, Q&A, prioritized fix plan

Tools & Techniques

iOS Audits

Xcode Instruments (Time Profiler, Allocations, Leaks)
SwiftLint, periphery for unused code
Firebase Crashlytics, Sentry crash analysis
Charles/Proxyman for API inspection
Manual security testing (SSL pinning, Keychain)

Cross-Platform Audits

Flutter DevTools, React Native Profiler
ESLint, Dart Analyzer for code quality
Sonar for code coverage & quality metrics
Android Profiler for memory/CPU/network
Dependency audits (npm audit, pub outdated)

Typical Outcomes

30-50% crash reduction by fixing top 5 crash hotspots
2-3x faster startup by optimizing initialization and lazy loading
OWASP compliance: Security vulnerabilities patched, App Store approval risks mitigated
Clear refactoring roadmap: Prioritized tech debt with effort estimates
Team confidence: Developers understand codebase risks and have action plan

Good For

Inherited Codebases: New team taking over legacy app—need risk assessment
Pre-Launch Review: Final hardening before major release or App Store submission
Refactoring Confidence: Planning major refactor—need objective assessment
Performance Issues: App feels slow, crashes unexpectedly, drains battery
Security Concerns: Handling sensitive data (banking, health, PII)—need security audit
App Store Rejections: Repeated rejections for crashes, privacy, or performance

Frequently Asked Questions

What does a mobile architecture audit include?

Code review for architecture patterns, crash/stability analysis, performance profiling (startup, memory, battery), security review (API calls, data storage, auth), testing coverage assessment, and dependency audit. Includes a detailed report with prioritized fixes.

How long does an audit take?

1-2 weeks for standard apps (10K-50K lines of code). Complex enterprise apps may take 3-4 weeks. Includes code review, automated analysis, manual testing, and report delivery.

Do you provide implementation support after the audit?

Yes—I offer optional follow-up pairing to implement high-priority fixes, refactor critical paths, or train your team on best practices. Can be structured as weekly check-ins or a dedicated sprint.

Need an audit for your mobile app?

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