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Privacy

Sixteen Eleven — last updated 25 October 2026

The short version

Sixteen Eleven does not collect anything about you. There are no accounts, no analytics, no advertising, no tracking, and no server that receives your activity. Everything you create stays on your own device, unless you turn on sync, which sends it to your other devices encrypted so that only they can read it.

What is stored, and where

These are kept in your browser's own storage on your device:

• Highlights, notes and your own cross references
• Study sheets and any entries you add or edit
• Which chapters you have marked read, your daily reading goal and your reading plans
• Your reading position and display settings
• Recent search terms
• Any books you import, which never leave the device
• Automatic restore points, if you leave that setting on

None of it is transmitted. Clearing the app's site data erases all of it, which is why the app lets you download a backup file you control.

Network requests

The app and the whole Bible come with it, so it works offline. A few things reach the network, and only when you use them:

• The narrated Bible. Narrated chapters are streamed from Cloudflare when you listen. Cloudflare sees an ordinary request for an audio file, including your IP address, and keeps standard server logs. The narration is an AI rendering, made with Chatterbox, of the narrator’s own voice, and carries an inaudible watermark saying so.
• The neural read-aloud voice. If you turn it on, the model is downloaded once from a public CDN (jsDelivr and Hugging Face) and cached. Your text is never sent anywhere; speech is made on your device.

Importing an EPUB, PDF or text book happens entirely on your device; the file is never uploaded.

Sync across devices (optional)

If you turn on sync, the app makes a private sync code on your device. Your highlights, notes, study sheets, chapters read, bookmarks, cross references, daily goal and reading plans are encrypted on your device with a key made from that code (AES-256-GCM) before they are sent to our sync server (sync.sixteeneleven.bible, on Cloudflare). The server stores only that encrypted file and an identifier derived from the code; it never receives the code itself, and we cannot read what is stored. There is no account, name or email. Turning sync off and choosing to delete the server copy removes the file from the server. Anyone who has your sync code can read your synced data, so keep it private.

Purchases

In the App Store and Google Play versions, subscriptions and one-time purchases are handled by Apple or Google. We never see your name or payment details. To know what you have bought, the app uses RevenueCat, which receives a random identifier made by the app, the products bought and when, and your device’s platform and country (RevenueCat’s privacy policy). It is not used for advertising or tracking.

Children

The app has no accounts, no messaging, no user-generated content shared with anyone, and no advertising. It collects no personal information from anyone, including children.

Permissions

The only permission the app may ask for is to show notifications, and only if you turn on reading reminders in the Tracker. The reminders are scheduled on your device by its own notification system; nothing is sent to a server to make them. It does not use the camera, microphone, contacts, or location. Saving a backup or a verse image opens your device’s own share sheet; nothing is sent unless you choose where.

Changes

If this policy changes, the date above changes with it.

Contact

Questions about privacy, or anything else: scribe@sixteeneleven.bible