Support

How can we help?

Email support@knaizen.com. A person reads every message, usually within two working days. Please don't send book files: we don't need them to help.

Getting started

• Sign in with Apple, then choose the folders in your iCloud Drive that hold your EPUB and PDF books. You only do this once.
• Books appear in the library straight away. Tap one, then Download, then Read: the iPhone fetches that one file from your iCloud Drive.
• If you moved your books to a different folder, use Choose Folders Again in Downloads.

A book or cover doesn't appear

• Check the file is an EPUB or PDF inside one of the folders you chose, and that iCloud Drive has finished uploading it (open the Files app and look for the cloud icon).
• Covers arrive in the background after the list; give it a minute on a slow connection. Books without a cover get a designed one.
• DRM-protected books (for example ones bought in another store's app) cannot be opened.

My place or highlights don't sync

• Sign in to iCloud on each device with the same Apple Account, and allow iCloud for Knaizen MyBooks (Settings, your name, iCloud).
• Check that your iCloud storage isn't full: synced data counts against your own iCloud storage.
• Open the book on the second device after you closed it on the first; the latest place is fetched when a book opens.

Talk to the book

• The on-device engine needs an iPhone that supports Apple Intelligence, with Apple Intelligence turned on in Settings.
• The Claude engine needs an active subscription and an internet connection. It may have a monthly fair-use limit, shown in the app.
• Answers come from passages of the book and can be wrong. Check what matters against the text.

App lock

Turn the lock on in the app's Settings. If Face ID fails, enter the app passcode. If you forget the app passcode, tap Forgot Passcode? and confirm with your iPhone's own passcode, then set a new one.

Subscriptions

• Cancel or change a subscription in your iPhone's Settings: tap your name, then Subscriptions. We cannot cancel it for you.
• Cancel at least 24 hours before the trial or the current period ends to avoid the next charge.
• Refunds are decided by Apple; request one at reportaproblem.apple.com.
• On a new iPhone or after reinstalling, sign in with the same Apple Account and use Restore Purchases in the app.

Delete your account

In the app's Settings, choose Delete Account. Details are in the privacy policy.