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App Privacy Notice

Unison Reader

Magrathea Software, LLC · Last updated: September 25, 2026

This notice explains how Unison Reader (the “App”), an app for iPhone and Mac published by Magrathea Software, LLC, handles data.

This notice supplements our general Privacy Policy. Where this notice and the general policy differ regarding the App, this notice controls.


1. The short version

2. Data the App stores on your device

To work, the App keeps the following on your device:

Deleting a book in the App removes that book and everything made for it. Deleting the App removes its local data; copies in iCloud or on other devices may remain. Your books, positions and settings may be included in your device’s backups (for example iCloud Backup) according to your own backup settings; the generated audio is excluded from backups.

3. Files you add

The App reads the book and audiobook files you choose in Files or share from another app. It makes its own copy and does not access your other files. Audiobook alignment uses Apple’s on-device speech recognition; your audio is not sent to us or to a remote transcription service.

4. Catalogs, library servers, and Apple services

Unison Reader can browse and download from Project Gutenberg, Standard Ebooks, and library servers you add, including OPDS and Audiobookshelf servers. Requests for catalogs, searches, covers, and downloads go directly to the selected service and include ordinary connection information such as your IP address and the search terms you enter. Each service handles these requests under its own privacy policy.

If a server requires sign-in, the credentials you provide are sent to that server. Server addresses are stored on your device and passwords in the system keychain; they are not sent to Magrathea or synchronized with your library.

When iCloud Drive is available, Unison Reader synchronizes library content through your own private iCloud container. Magrathea does not have access to that container. Manage iCloud through your Apple account settings. iCloud copies and copies on other devices may remain after you uninstall the App.

Apple processes listening purchases and restores through the App Store. Unison Reader checks the purchase entitlement using StoreKit; we do not receive payment-card details through the App. Apple's on-device speech recognition may need to download system language assets.

The system's Look Up panel may offer online searches or information when you choose them. Those services follow their providers' privacy practices.

5. Information Apple may share with us

The App is distributed through Apple’s App Store and TestFlight. Apple may make certain information available to us under its own terms. For example, if you test the App through TestFlight: your name and email address if you were invited by email, feedback and screenshots you choose to send, and crash reports. If you use the App Store version: crash reports and usage data you have agreed to share with app developers in your device settings. We use this information only to support you and to fix and improve the App.

6. Sharing

We do not sell or share information for advertising. Because the App does not send your data to us, there is nothing from the App for us to share. We may share the limited information described in section 5 only where required by law or to protect rights and safety.

7. Children

The App does not collect personal information from anyone, including children.

8. Your choices

You can delete a book and its associated audio within Unison Reader, remove library-server connections, and manage iCloud Drive through your Apple account settings. Uninstalling the App removes local data but may leave iCloud copies or copies on other devices. To ask about information Apple has shared with us (section 5), or to ask that we delete it, email us at the address below.

9. Changes

We may update this notice from time to time. We’ll revise the “Last updated” date above when we do, and reflect material changes in the App’s listing where appropriate.

If you contact support, we receive your email address and the information or diagnostic logs you choose to send. Our general Privacy Policy covers that correspondence.

10. Contact

Magrathea Software, LLC
Missouri, USA
Email: support@magratheasoftware.com