Effective date: September 29, 2026
This page describes app.papergrid.paperstack.documentviewer.
The file index, favorites notebook, extracted document text, PDF thumbnails, and playback remain on the device. No Paperstack cloud endpoint exists.
All files access supports the product's device-wide reading and management purpose. Permanent removal happens only after the user accepts a dedicated confirmation.
A deliberately selected APK is copied to private cache, shared read-only with Android's installer, and then governed by the installer's visible controls.
The release does not contain analytics, advertising, telemetry, registration, or online document-processing services. User data is not sold.
Favorite paths live in a small app-local notebook until removed or application data is cleared. Dispatch copies are temporary cache items.
Paper Grid Software LLC is responsible for this application and uses PaperGrid Studio as its Google Play developer name.
The privacy desk can be reached at privacy@papergridstudio.com.