PosCleaner Privacy Policy

Last updated: 2026-05-17

Summary

PosCleaner is a macOS app that runs entirely on your Mac. It does not collect, transmit, share, or sell any of your personal data or photos. There are no analytics, no telemetry, no ad networks, no crash reporting services.

What PosCleaner accesses

PosCleaner reads two kinds of data on your device, with your explicit permission, to perform its function:

• Your Apple Photos library — read-write. PosCleaner needs to read PHAsset metadata + thumbnail bytes to compare them against files in a folder you select, and to add new files when you click "Add to Photos". macOS prompts you for this permission the first time you run a scan.
• A folder you choose — read or read-write, scoped via the standard macOS file picker. PosCleaner reads image files inside this folder to compute on-device visual embeddings.

PosCleaner additionally reads:

• File timestamps (Apple-declared Required Reasons API category) — to detect whether a photo has been edited.
• Free disk space (Required Reasons API) — for the on-disk cache sizing displayed in Settings.
• System boot time (Required Reasons API) — used implicitly by Apple's Foundation framework; PosCleaner does not surface this value.
• macOS UserDefaults (Required Reasons API) — stores your folder bookmark and last-scan results locally on your Mac.

What leaves your Mac

Nothing. PosCleaner makes zero network calls from inside the app. The MobileCLIP-S1 vision model — Apple's open-source image encoder, bundled with the app — runs on your Mac's Neural Engine. Photos, embeddings, and scan results never leave your device.

The only network traffic associated with this product is App Store delivery and Apple's automatic crash-report aggregation, both of which Apple operates and are governed by Apple's Privacy Policy.

Where data is stored

All PosCleaner data lives in your Mac's sandboxed app container:

• ~/Library/Containers/dev.aposnov.poscleaner/Data/Library/Application Support/PosCleaner/ — debug log, image-match cache, last-scan results.

You can wipe all PosCleaner data via Settings → Reset → Clear all app data. Uninstalling the app via Finder also removes everything except the debug log.

Third-party content

PosCleaner bundles Apple's MobileCLIP-S1 CoreML model, released by Apple under the Apple Sample Code License. The model is loaded into Apple's Neural Engine and runs locally; it does not contact any external servers.

Children

PosCleaner does not knowingly collect any data from children. The app has no online services, so there is no data to collect from any user.

Changes to this policy

Material changes will be announced in the app's release notes on the App Store. The current policy is always available at https://poscleaner.aposnov.dev/privacy.html.

Contact

Questions, concerns, or data requests: aposnovdev@gmail.com.

Operator: Andrey Posnov, individual developer.