10. Appendices

10.1 Tools & Methods Used

This audit was conducted using the following tools and methods:

Code Analysis Tools

  • Manual Code Review: Comprehensive manual review of source code, configuration files, and project structure
  • Semantic Code Search: Used codebase search tools to identify patterns, security issues, and architectural decisions
  • Static Analysis: Review of code structure, dependencies, and configuration files
  • Dependency Analysis: Examination of pubspec.yaml, pubspec.lock, and dependency relationships

Project Information Sources

  • Source Code Repository: Analysis of Flutter/Dart source code in lib/ directory
  • Configuration Files:
    • pubspec.yaml - Dependency declarations and project configuration
    • codemagic.yaml - CI/CD pipeline configuration
    • android/app/build.gradle - Android build configuration
    • .fvmrc - Flutter version management configuration
    • android/fastlane/ and ios/fastlane/ - Deployment automation
  • Project Structure: Analysis of directory organization and file structure
  • Git History: Review of commit history and version control practices

Analysis Methods

  • Security Assessment: Review of authentication, data storage, network security, and secrets management
  • Code Quality Review: Analysis of architecture, error handling, state management, and code duplication
  • Dependency Audit: Review of third-party packages, versions, and security implications
  • Performance Analysis: Review of app size, memory management, and network performance
  • CI/CD Review: Analysis of build pipeline, code signing, and deployment processes
  • Testing Assessment: Review of test coverage and testing infrastructure
  • Documentation Review: Assessment of documentation, README, and API documentation

Technologies Analyzed

  • Flutter Framework: Version 3.24.3 (via FVM)
  • Dart SDK: >=3.0.0 <4.0.0
  • Build Tools: Gradle (Android), CocoaPods (iOS), Fastlane
  • CI/CD: Codemagic
  • Database: Moor/SQLite
  • Networking: Dio, Retrofit
  • Firebase Services: Crashlytics, Analytics, Performance, Remote Config, Messaging
  • State Management: Provider with ChangeNotifier

10.2 References

Flutter & Dart Documentation

  • Flutter Official Documentation: https://flutter.dev/docs
  • Dart Language Specification: https://dart.dev/guides
  • Flutter Best Practices: https://flutter.dev/docs/development/best-practices

Security Standards & Guidelines

  • OWASP Mobile Security: https://owasp.org/www-project-mobile-security/
  • OWASP Top 10 Mobile Risks: https://owasp.org/www-project-mobile-top-10/
  • Android Security Best Practices: https://developer.android.com/topic/security/best-practices
  • iOS Security Guide: https://developer.apple.com/documentation/security

Testing & Quality Assurance

  • Flutter Testing Guide: https://flutter.dev/docs/testing
  • Golden Testing: https://github.com/flutter/flutter/wiki/Writing-a-golden-file-test-for-package:flutter
  • Test Coverage: https://flutter.dev/docs/testing/code-coverage

State Management

  • Provider Package: https://pub.dev/packages/provider
  • Flutter State Management: https://flutter.dev/docs/development/data-and-backend/state-mgmt

CI/CD & Deployment

  • Codemagic Documentation: https://docs.codemagic.io/
  • Fastlane Documentation: https://docs.fastlane.tools/
  • Flutter CI/CD: https://flutter.dev/docs/deployment/cd

Code Quality & Architecture

  • Flutter Architecture Samples: https://github.com/flutter/samples
  • Dart Style Guide: https://dart.dev/guides/language/effective-dart/style
  • Clean Code Principles: https://dart.dev/guides/language/effective-dart

Dependency Management

  • Pub Package Manager: https://dart.dev/tools/pub
  • Dependency Security: https://dart.dev/guides/libraries/package-deps
  • Flutter Version Management: https://fvm.app/

Document Control

VersionDateAuthorChanges
1.024/11/2025Jonas OckermanInitial comprehensive audit document

Document Information

Document Title: Tinq4U App - Security & Code Audit Report
Project: Tinq4U Mobile Application
Version Audited: 1.6.24
Platform: Flutter (Android & iOS)
Audit Date: 24/11/2025
Auditor: Jonas Ockerman
Audit Type: Comprehensive Security & Code Quality Audit

Distribution

This document is intended for:

  • Development team
  • Technical leadership
  • Security team
  • Product management
  • Compliance team

Confidentiality

This audit report contains sensitive information about security vulnerabilities, code quality issues, and technical debt. Distribution should be limited to authorized personnel only.

End of Audit Report