Privacy Policy
Last updated: April 2, 2026
shelff ("the App") is developed by Satoshi Kojima. This privacy policy explains how the App handles your data.
Data Collection and Storage
The App does not collect, transmit, or store any personal data on external servers. All your data — including PDF files, metadata, reading progress, and annotations — is stored exclusively in your own iCloud Documents storage, managed by Apple.
Third-Party Services
The App does not use any third-party analytics, advertising, or tracking services.
iCloud
The App uses Apple's iCloud Documents to store and sync your data across your devices. Your iCloud data is subject to Apple's Privacy Policy (https://www.apple.com/legal/privacy/).
Data Retention
Since all data is stored in your iCloud Documents, you have full control over your data at all times. You can access, modify, or delete your files directly through the Files app. Uninstalling the App does not delete your iCloud data.
Changes to This Policy
This privacy policy may be updated from time to time. Any changes will be posted on this page with an updated date.
Contact
If you have any questions about this privacy policy, please contact shelff@skoji.dev.