Support

Something not working, or an idea for Rotebird? Write to support@reba-labs.com. We read every message and usually answer within two working days.

Common questions

Why doesn't Rotebird suggest cards on my iPhone?

Suggested cards use Apple's on-device model, which needs an iPhone that supports Apple Intelligence, iOS 26 or later, and Apple Intelligence turned on in Settings. Right after you turn it on, the model may still be downloading. Rotebird shows which case applies in the Make cards screen and in Settings. You can always write cards by hand next to the recognised text.

Which languages work?

Text recognition reads most Latin-script languages, Chinese, Japanese and Korean. Suggestions work in the languages Apple Intelligence supports; for others, Rotebird says so and you can write the cards yourself.

How does Rotebird decide when a card comes back?

It uses FSRS, an open spaced-repetition algorithm. Each review updates how well you know the card, and the next review is planned for when you'd still remember it with the probability set in Settings > Remember (90% by default).

How do I make a fill-the-gap card?

In a deck, tap Write, choose Fill the gap, type or paste a sentence, select a word and tap Make a gap. Each gap becomes its own card.

Can I import my existing decks?

Yes, with Rotebird Plus: Decks > + > Import a deck, then pick an .apkg deck package or a CSV file (two columns: front and back). Text, gaps and review intervals are imported; pictures and sounds aren't yet. If an .apkg is refused as a newer compressed format, export it again from your desktop app with the option for older versions (legacy format) turned on.

How do I add the widget?

The widget comes with Rotebird Plus. Touch and hold your Home Screen or Lock Screen, tap Edit, then Add Widget, and choose Rotebird.

I bought Rotebird Plus on another iPhone.

Open Settings and tap Restore Purchases while signed in to the same Apple Account.

How do I cancel the subscription?

In the iPhone's Settings app, tap your name, then Subscriptions, then Rotebird. Cancel at least 24 hours before the trial or the current year ends to avoid the next charge. Your decks, cards and reviews keep working for free.