Support

Last updated: July 20, 2026

Marcus is a reader built to keep your attention on the page. If something isn’t working, or you have a question or an idea, we’d love to hear from you — email marcus@vuvee.me and we’ll usually reply within 1–2 business days.

Frequently asked questions

Which books can I import?

Marcus reads EPUB, PDF and plain text files. Import them from the Books tab, or open a file from another app and choose Marcus. Text-based PDFs work offline; image-only or scanned PDFs are not currently supported.

Do I need an account?

No — Marcus works fully as a guest, and your books and progress stay on your device. Creating an account with your email is optional and adds sync, so your library and progress can be restored on a new device.

How do the AI explanations work?

Tap any word or passage and Marcus explains it in context; recaps catch you up when you return to a book. The free plan includes a daily number of AI requests; Pro removes the limit.

How do I restore my purchase?

Subscriptions are handled by the App Store. If Pro doesn’t show up on a new device, open Settings → Marcus Pro → View → Restore purchases in the app while signed in with the same Apple ID.

How do I manage or cancel my subscription?

Open Settings → Marcus Pro → Manage in Marcus, or open your Apple subscriptions directly. Your subscription stays active until the end of the paid period after cancellation.

How do I delete my account?

Open Settings → Account → Delete account in the app. This permanently removes your account and everything synced to our servers, but it does not cancel an active App Store subscription. See the Privacy Policy for details.

Notifications are too much (or not showing)

Reading reminders are optional and scheduled on your device — adjust or turn them off in the app’s Settings, or in iOS Settings → Notifications → Marcus.

Still stuck?

Email marcus@vuvee.me with a short description of the problem, your device model and iOS version — a screenshot helps a lot.