The Knowledge Press: Privacy Policy

Flux-Frontiers. Effective 2026-09-28.

The Knowledge Press is a reading and research app for a library of public-domain books. It is built to work on your device with the network off. This page says what the app, and the Knowledge Press Forest website, do and do not do with your data.

What we collect

Nothing. The app has no accounts, no sign-in, no analytics, no advertising, no crash reporting, and no third-party software development kits. We do not receive your questions, your reading history, or anything else from the app. There is no server of ours for the app to talk to.

What stays on your device

• The library. The books, their search index, and the query embedder are installed with the app. Searching and reading never leave the device.
• Your conversations and your press. Questions, answers, and the books you have saved are stored in the app's own Application Support folder on the device. They are part of your device backup if you back the device up; the library itself is excluded from backups because it can be reinstalled.
• Settings. Kept in the app's preferences on the device.

Deleting the app deletes all of it.

Optional answer engines

On a device with Apple Intelligence, the on-device engine is the default; without it, answers are off and the app shows you the passages it found. You can choose among three engines in Settings. Two of them send data off the device, and only when you choose them.

• On-device uses Apple Foundation Models on the device. Nothing leaves it.
• Private Cloud uses Apple Foundation Models on Apple's Private Cloud Compute. Your question and the passages the app retrieved for it are sent to Apple under Apple's Private Cloud Compute commitments, not to us. See Apple's Private Cloud Compute documentation.
• Worker sends your question and the retrieval to a server at an address you type in yourself, typically one you run. We do not operate a worker for the public and do not see that traffic. What that server does with the data is up to whoever runs it.

The Knowledge Press Forest website

The Knowledge Press Forest, at flux-frontiers.github.io/knowledge_press, is the same library as a forest you walk through in a web browser. Like the app, it has no accounts, no analytics, no advertising and no cookies, and it sends us nothing.

• What it keeps in your browser. The books in your press, the groves you have visited and your settings are saved in your browser's local storage on your device. They are not sent anywhere. Clearing the site's data in your browser deletes them.
• Your location, if you allow it. When you start, the forest asks your browser for your location so the sun, moon and stars stand where they do for you. It rounds the location to a tenth of a degree (roughly 10 km), keeps it only in your browser's local storage, and uses it only in your browser to place the sky. If you decline, the sky estimates a location from your time zone. You can withdraw the permission in your browser's settings at any time.
• Reading aloud, if you turn it on. The tour's grove captions are spoken by your browser's own speech synthesis. On Apple devices that uses the system voices on the device. Some browsers offer online voices; if yours uses one, the caption text goes to that service. The captions describe the library and contain nothing about you.
• Hosting and fonts. The site is served by GitHub Pages, and its fonts are loaded from Google Fonts. Like any website, those services receive your IP address and browser details with each request, under GitHub's privacy statement and Google Fonts' privacy notice. We do not receive that information.
• Reading books. The public site cannot open a book's text. Reading works only when you run the forest yourself alongside a GutenbergKG worker you run; the forest then asks that worker for a book's chapters and nothing else.

Children

The app is rated 13+ on the App Store because the library includes classic literature written for adults. We do not knowingly collect personal information from anyone, of any age.

Changes

If the app ever starts collecting anything, this page will say what and why, with a new effective date, before that version ships.

Contact

Questions about this policy: email suchanek@flux-frontiers.com, or open an issue at github.com/Flux-Frontiers/knowledge_press/issues.

The Knowledge Press is not affiliated with Project Gutenberg. The library's texts are public domain; Project Gutenberg and the Internet Archive are acknowledged as their sources.