Activity Trace
- Demo mode — try ActivityTrace with curated fictional activity data
- Theme selection — system default, light, dark, or OLED black
- Search ranking — results ordered by relevance and recency (BM25 + FTS5)
- Privacy settings screen documenting that events from blocked apps and password fields are never captured
- Welcome screen with capture status dashboard and contextual setup guidance
Improvements:
- Encrypted backup/restore with integrity verification (backup envelope)
- Search
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.
- Author: David Neurieder
- License: GNU General Public License v3.0 only
- Issue Tracker
- Source Code
- Build Metadata
- Reproducibility Status
Versions
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.
Download F-Droid-
arm64-v8aThis version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Download APK 9 MiB PGP Signature | Build Log
-
arm64-v8aThis version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Download APK 11 MiB PGP Signature | Build Log
-
arm64-v8aThis version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Download APK 11 MiB PGP Signature | Build Log
- Landing page with documentation and screenshots
- Statistics view now persists across app restarts
Improvements:
- Daily chart bars and labels separated for clearer statistics
- Daily statistic no longer shows zero-value entries
- Database schema exported and migration path regression-tested
Fixes:
- Duplicate captures prevented when the same content appears repeatedly
- Fixed database migration for the dedup index (wrong index name could cause an upgrade crash)
- Database corr
- Statistics screen with summary cards, timeline charts, top apps, breakdown
- Blocked system apps auto-configured on fresh install
- Diagnostic error logs for export and backup failures
Improvements:
- Timeline charts now same size — no jumping when switching tabs
- Top apps always visible (even with 0 or 1 entry)
- Breakdown always shown after timeline
- More detailed export error messages
Fixes:
- Export no longer crashes on some Android 16 devices
- SQLite backup no longer fa