Activity Trace

com.activitytrace

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

Republished from GitHub / F-Droid by the Zapstore main account.

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. <ul> <li>Find what you saw — one searchable timeline of notifications, screen content and files</li> <li>Search naturally — type "yesterday", "last week" or plain keywords</li> <li>Filter precisely — by app (in:signal) or content type (type:notification), with prefix matching, ranked results and highlighting</li> <li>You control retention — choose how long data is kept and block individual apps</li> <li>See when and where — statistics about captured activity over time</li> <li>Encrypted at rest — SQLCipher AES-256-CBC + Android Keystore</li> <li>Theme support — system default, light, dark, or OLED black</li> <li>Demo mode — try ActivityTrace with fictional data, fully separate from your real activity</li> </ul> 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.

First release: Aug 12, 2026, 2 total releases.

Most recent release: Sep 11, 2026.

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Releases

Sep 11, 2026 0.10.0

### New - Demo mode — explore ActivityTrace with curated fictional data (messages, notifications, emails, documents, browsing) via the demo dataset entry; never touches real captures - Theme selection — system default, light, dark, and OLED black - Search ranking — results now ordered by relevance (BM25) merged with a recency pool (reciprocal-rank fusion) - FTS5 full-text search — implicit prefix matching so partial words (`whats`) find matches; FTS5 index backed by content-sync triggers - Privacy settings screen — documents what gets captured and that events from blocked apps and password fields are never captured - Welcome screen with capture status dashboard — summary states (ok/partial/off), "Needs setup" rows, and contextual permission explanations ### Improvements - Encrypted backup/restore with integrity verification (backup envelope with authenticated payload)

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- Search results paginated (50/page) instead of loaded at once - File indexing extraction budget — avoids excessive memory use on large folder scans - Settings screen reorganized: capture status dashboard now includes the blocked-apps row - Backup export explicitly labeled as unencrypted plain SQLite - SQLCipher upgraded to 4.17.0 with `DatabaseOpener`/`DatabaseKeyStore` recovery seams ### Fixes - Capture toggle no longer shows stale state after toggling permissions - Export crash on some Android 16 devices (`MediaStore.Downloads.insert()` null) - Export UI improved with explicit backup/restore/JSON/CSV actions - SQLite backup no longer fails on retry (stale temp file) - Duplicate permissions settings section removed ### Technical - `ActivityTraceDatabase` version 7→10 (FTS5 `captured_items_fts`, demo `demo_dataset_id`, encryption-recovery state) - `SearchRanker` with RRF merge of BM25 + recency pools - Backup envelope replaced plain archive format; restore validates integrity and leaves the live DB unchanged on failure - `CaptureLimits`/`ExtractionBudget` bound accessibility and file-indexing work
Aug 12, 2026 0.9.0

## v0.9.0 — 2026-08-12 ### New - Project 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

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### Fixes - Duplicate captures prevented when the same content appears repeatedly - Upgrade crash caused by wrong dedup-index name in the v6→v7 migration (index renamed to the canonical Room-generated name) - Database corruption from an encryption key mismatch now resets safely instead of crashing ### Technical - `ActivityTraceDatabase` version 6→7 with `exportSchema = true` and committed schema JSONs - Migration path regression-tested via `MigrationTestHelper` through Room's real open path - `buildDatabase` hardened: eager open + detection of SQLCipher encryption failures (key-mismatch reset only on genuine corruption)