Private Journal & Mood — Biometric, Encrypted, Offline (SwiftUI + Apple Watch)

Private Journal & Mood is a complete, App-Store-ready SwiftUI app for iOS 16+ with an

Apple Watch companion (watchOS 9+). It's built around privacy that's actually real:

- Two real security layers. A Face ID / Touch ID lock (with passcode fallback) gates

the app, and every entry's text is encrypted at rest with CryptoKit AES-GCM. Only

ciphertext is written to disk; the key lives in the Keychain, this-device-only, never

synced or backed up.

- 100% offline. No network code, no accounts, no analytics, no third-party SDKs.

Ships with a correct `PrivacyInfo.xcprivacy` (declares no tracking, no data collection).

- Beautiful, native UI. Light and dark mode on every screen, a mood calendar

heatmap, mood trend charts (Swift Charts), streaks, smooth animations (Reduce

Motion respected), Dynamic Type, and app-switcher blur.

- On-device sentiment via Apple's NaturalLanguage — mood tags are the primary signal.

- Apple Watch companion for quick mood logging + a streak glance, with a WidgetKit

complication. The watch never holds entry text or the key (WatchConnectivity only).

- Reskin in under an hour. Colors, strings, app name, and icon are centralized. Full

Re-Skin Guide, Documentation (HTML), unit tests, and seeded demo data included.

Positioned as a private journaling & mood-logging app — not a medical device.

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