App

Navigation

PhotoMeterProApp → ProIntroLaunchRoot (3.6s intro) → onboarding gate → MainUI with four tabs:

• Camera — CameraSelectionView: brand/series/model picker, typeahead, active camera
• Lens — LensSelectionView: search, mount compatibility, lens alternatives, optional AI description/tags (Pro)
• Meter — MeterView: live preview, EV, histogram, waveform mini, ISO/shutter/aperture, ND/CPL filters, flash metering
• Settings — SettingsView: hub linking to ~30 Pro screens, AI advisors, and metering modes

Architecture

Singleton engines injected as @EnvironmentObject plus ViewModels per screen. Key engines: SceneCaptureEngine, MeterIntegrationEngine, MonetizationEngine, PMPAIService, SyncEngine, AIOrchestratorEngine.

Persistence

• SwiftData local: CameraBody, Lens, Filter, UserProfile (cloudKitDatabase: none)
• Manual CloudKit sync via SyncEngine to iCloud.com.tine.photometerpro
• Presets, History, MeterCalibrationStore, SettingsCenterEngine (UserDefaults)

Integrations

• AVFoundation — camera capture and metering
• CoreBluetooth — BLE camera output
• CloudKit — gear/profile sync (Pro)
• StoreKit 2 — Pro entitlement
• WatchConnectivity — Apple Watch companion
• HTTP to Cloudflare Worker — all AI advisors