Nimbus Reader is a speed-reading app for iPhone and iPad. This page is the support home for the app.
Please include your device model, iOS version, and the app version (Settings > About) so we can help faster. We aim to reply within a few business days.
How do I import a book? Open the Library tab and use the import option to pick a file from the Files app, paste text, or add a link.
Which file types are supported? EPUB, PDF, plain text (TXT) and HTML files, plus pasted text and web links. Files with DRM cannot be imported. If a file fails to import, email us and we will look into it.
How do I change my reading speed? Go to Settings > Reading Speed, or use the Reader Settings sheet from a book. You can also adjust speed while reading.
How do I manage or cancel my subscription? Subscriptions are billed by Apple. Open the Settings app on your device, tap your name, then Subscriptions, and choose Nimbus Reader.
Does my library sync across devices? Cloud sync is a Pro feature. Sign in with the same account on each device to sync your library and reading progress.
How do I delete my account and data? Go to Settings and tap Delete Account, next to the Sign Out button. This removes your account and any synced reading data. If you cannot access the app, email us from the address on your account and we will process the request. See the Privacy Policy for details.
Something is not working. What should I do? Force-quit and reopen the app, make sure you are on the latest version, then contact us with the details above.