Tinq4U App - Security & Code Audit Report
Project: Tinq4U Mobile Application
Version: 1.6.24
Platform: Flutter (Android & iOS)
Audit Date: 24/11/2025
Auditor: Jonas Ockerman
Audit Type: Comprehensive Security & Code Quality Audit
Executive Summary
This audit report documents findings from a comprehensive review of the Tinq4U mobile application codebase. The audit covers security, code quality, testing, dependencies, performance, and compliance aspects of the Flutter-based Android and iOS application.
Overall Risk Level: High Risk
Key Highlights:
- Critical Security Issue: Sensitive files (certificates, private keys, keystores, service accounts) stored directly in repository - Immediate security risk requiring credential rotation
- Critical Testing Gap: Complete absence of test suite (unit, integration, and UI tests) - No safety net for code changes or refactoring
- Suboptimal Git Workflow: GitFlow branching model and separate staging/production tags create complexity and make deployment tracking difficult
- Deprecated Dependencies: Staging build relies on deprecated libraries (device_info, package_info, share, moor) and fixed Git commits, creating security and maintenance risks
- Code Cleanup Needed: Unused CI/CD pipeline files (Jenkins) should be removed to reduce repository bloat
- Refactoring Strategy: Should align refactoring efforts with redesign initiatives to maximize value and avoid duplicate work