Duri and your privacy

Last changed: 4 October 2026

Duri is a reader for the books and documents you already have. It has no account, no analytics and no server of its own. This page says what that means in practice.

What Duri collects

Nothing. Duri does not collect, store or send any information about you or your reading to us or to anyone else. There is no sign‑in, no tracking, no advertising and no analytics library in the app.

Where your things live

Your books, your place in them, your highlights, notes, drawings and settings stay on your device, in Duri's own folder. Your reading time and goal stay on the device too and are never synced. One small exception: how many of the day's ten free minutes of listening you have used is also kept in your own iCloud (Apple's key‑value storage), so that deleting and reinstalling the app does not reset it. It is a date and a number of seconds, nothing about what you read.

iCloud, if you turn it on

With Duri Pro you can sync your library list, places, bookmarks, highlights and notes, and, if you choose, the book files themselves, through your own iCloud account, in Duri's private space there. That data goes to Apple's iCloud servers under your Apple Account. Your notes, highlights and places are stored with iCloud's end‑to‑end encryption, so only your devices can read them; book covers and, if you choose to keep them in iCloud, the book files are stored as ordinary private iCloud files. We cannot see any of it. Turn sync off in Settings and nothing more is sent. To delete what is there, open the Settings app on your iPhone, tap your name, then iCloud, Manage Storage (or Storage), Duri, and delete its data.

What leaves your device, and only when you ask

• Saving a web page or following a site fetches that page from its own website, as a browser would.
• Catalogues (Project Gutenberg, or a server you add) are contacted only when you open them; a sign‑in you enter for your own server is kept in your device's Keychain and sent to that server alone.
• Look up on Wikipedia opens Wikipedia in your browser with the words you selected.
• Find a book sends the book's number (its ISBN), or the title and author you typed or confirmed, to Open Library to learn which book it is, and its title to Project Gutenberg to see whether a free copy exists. A barcode or a cover is read by the camera on your device; the picture is not kept and is not sent. Choosing Apple Books asks Apple's catalogue for the book's page; the other borrow and buy links open in your browser on their own sites. None of these requests carries anything about you.
• Reading aloud uses a voice built into the app and run on your device; for a language it does not speak, the system's own voices read instead. Recognising scanned pages and summaries happen on the device too, with Apple's recognition and Apple Intelligence. Nothing is sent to us.
• Buying Duri Pro goes through Apple's App Store; we receive no personal details from it.

The widgets, the share sheet and the watch

Duri's widgets, its share‑sheet extension and its Apple Watch app read a small summary of your library that the app leaves for them on the device. It never goes further than your own devices.

On Android

Duri for Android keeps the same promise: nothing is collected, and there is no account, no analytics and no server of ours. Where it works differently from the iPhone:

• Sync, with Duri Pro, goes through a folder you choose with Android's own folder picker, for example in your Google Drive, Dropbox or OneDrive, or on the device. Duri writes a small file per device there, with your library list, places, bookmarks, highlights and notes, and, if you choose, the book files. That folder's own service carries it under your account with that service, and its own privacy terms apply; Duri does not encrypt those files itself. Stop syncing in Settings and nothing more is written.
• The free listening minutes are counted on the device only.
• A sign‑in you enter for your own book server is kept encrypted with a key in the device's Android Keystore and sent to that server alone.
• Scanned pages, barcodes and covers are read on the device by open‑source code (Tesseract and ZXing) that sends nothing anywhere. Summaries are not offered on Android.
• Find a book works as above, with a link to Google Play Books in place of Apple Books; it opens in your browser and asks nothing until you tap it.
• Buying Duri Pro goes through Google Play; we receive no personal details from it.
• The widgets read the same small summary the app leaves on the device. The listening controls on a Wear OS watch are Android's own media controls; Duri has no watch app there.

Children

Duri is rated 4+ and collects nothing from anyone.

Changes

If this page changes, the date at the top changes with it.

Questions

Write to contact at neeraj dot ca. See also the terms of use.