A native iOS app for journaling, AI conversation, and biometric insights.

Coming soon

• Prompt-driven entries — CSV-loaded prompts or defaults like "What made you smile today?"
• Rich tagging — Categories: Mood, Sleep, Activity, Health, Custom
• Health metrics attached — Each entry can include biometric data from the time of writing
• Core Data persistence — Entries stored locally with full offline support

Fetches and analyzes five biometric categories:

9 built-in themes with full color system:

• System — Follows device setting
• Light / Dark — Standard modes
• Harper — Sage green
• Darcy — Soft lavender
• Shay — Ocean blue
• Kit — Warm rose
• Zephyr — Mint teal
• Aspen — Earthy tan

Each theme defines: primary, secondary, tertiary, quaternary, quinary colors + computed background gradients.

• Keychain storage — API keys stored via SwiftKeychainWrapper
• Local-first — Journal data stays on device (Core Data)
• Permission managers — Granular control for Health, Audio, Calendar, Notifications

brink/
├── brinkApp.swift              # App entry, environment setup
├── Models/
│   ├── JournalModels.swift     # JournalEntry, Tag, PersistenceController
│   ├── ChatModels.swift        # Message types, animation config
│   ├── ThemeModels.swift       # BrinkThemeColors, 9 theme definitions
│   ├── HealthModels.swift      # Health data structures
│   └── UserModel.swift         # User state
├── Views/
│   ├── Journal/                # JournalView, entry creation
│   ├── Chat/                   # AI conversation UI
│   └── Settings/               # Settings rows, theme picker
├── ViewModels/
│   ├── Journal/                # JournalViewModel, NewJournalEntryViewModel
│   └── Settings/               # Theme, Privacy, Notification, Profile VMs
├── Services/
│   ├── API/                    # APIKeyManager (Keychain)
│   ├── Chat/                   # ChatInteractorProtocol, KeyboardObserver
│   ├── HealthKit/              # HealthDataManager, fetchers, analysis
│   ├── Journal/                # Core Data model, voice service
│   ├── Messaging/              # ResponseParser
│   └── Permissions/            # Health, Audio, Calendar, Notification managers
├── Managers/
│   └── PromptManager.swift     # CSV-loaded journal prompts
├── Navigation/
│   └── MainTabView.swift       # Tab bar with 5 tabs
└── Extensions/
    ├── Color+Extension.swift   # Hex color init
    └── View+Extension.swift    # View modifiers

1. Clone the repo
2. Open brink.xcodeproj in Xcode
3. Configure signing team
4. Build and run

The app requires HealthKit capabilities. Ensure your provisioning profile includes:

• com.apple.developer.healthkit
• com.apple.developer.healthkit.background-delivery

• 39 Swift files
• ~3,400 lines of code
• 5 HealthKit fetchers
• 9 color themes
• 4 permission managers

This is the open-sourced iOS frontend. Backend is not included.

Aria Han — github.com/ariaxhan

Originally created at Brink Labs (2024).

MIT