On device: preferences, avatar settings, privacy activity logs, and an app-generated device ID in secure storage.
Optional backend: if you set a Django URL/API key in Settings, anonymized event logs (action name, device ID, platform, timestamp) may be sent to that server.
Contacts / photos: only when you explicitly use duplicate-cleanup features and grant permission; processed locally.
We do not sell personal data. There is no required cloud account for core features.
How we use data
Data is used only for app functionality (cleanup tools, settings, optional audit logging). No ads/tracking SDKs are required for core use.