iOS Development
Native applications built with Swift and SwiftUI
Summary
- Privacy-first iOS app for hermit crab care tracking.
- SwiftUI app with Swift 6 concurrency and testable architecture.
- On-device data, local notifications, and export tools.
CrabApp
Hermit Crab Care Companion
A privacy-focused iOS app for tracking hermit crab care: water quality, humidity, temperature, food, health observations, and molting cycles. All data stays on-device—no accounts, no servers, no analytics.
Features
Care Tracking
Log water changes, humidity readings, temperature, feeding, and health observations
Local Notifications
Reminders for care tasks, all created and managed on-device
Multi-Tank Support
Track multiple habitats with separate logs and settings
Analytics
Visualize care patterns and trends over time
Privacy First
No accounts, no servers, no telemetry—data never leaves your device
Data Export
Export your data for backup or analysis; import to restore
Technical Highlights
- Swift 6 Concurrency: Modern async/await patterns with concurrency-safe architecture.
Environment injection via
@Environment(\.tankStore)follows Swift 6 best practices. - Testable Architecture: Dependency injection for all external interfaces (UserDefaults, notifications). Unit tests never touch real user data.
- CI/CD Pipeline: GitHub Actions for linting (SwiftLint strict), unit tests, and nightly UI tests. Pre-commit hooks enforce formatting.
- Toast System: Decoupled UI feedback via protocol (
Toasting) to avoid runtime selectors and cross-actor captures. - Component Library: Reusable SwiftUI components for log history, entry rows, quick-fill chips, tags, and flow layouts.
Privacy & Security
Local Storage Only: All data stored in UserDefaults on device
No Analytics: Zero telemetry, tracking, or third-party SDKs
Clipboard Safety: Local-only with short expiration for clipboard actions
Reset Option: Clear all data and notifications from Settings → Advanced