Appnest

Activity Trace

Find something you saw on your phone — privately and on-device.

Android · v0.10.0 · David Neurieder

About Activity Trace

Ever see something on your phone and then struggle to find it again?

ActivityTrace creates a private, searchable memory of your Android activity.

Search notifications, captured screen content, and indexed files from one place.

No Internet permission. No cloud. No account. No telemetry.

Your data stays encrypted on your device.

Find what you saw — one searchable timeline of notifications, screen content and files

Search naturally — type "yesterday", "last week" or plain keywords

Filter precisely — by app ( in:signal ) or content type ( type:notification ), with prefix matching, ranked results and highlighting

You control retention — choose how long data is kept and block individual apps

See when and where — statistics about captured activity over time

Encrypted at rest — SQLCipher AES-256-CBC + Android Keystore

Theme support — system default, light, dark, or OLED black

Demo mode — try ActivityTrace with fictional data, fully separate from your real activity

Privacy isn't a promise — it's an architecture. ActivityTrace has no Internet permission, so there is no hidden analytics endpoint, no cloud sync, and no telemetry waiting to be disabled. Your data cannot leave your device.

Free and open source software (GPL-3.0-only). Distributed via F-Droid: no Google Play Services, no proprietary dependencies, no AI or ML components.

More system tools for Android