Guides step by step.
Questions and answers.
Does RectoVerso sync between devices?
No: your cards stay on your iPhone, and RectoVerso has no account. Your library is backed up to your own iCloud Drive, and after a reinstall, on this iPhone or a new one, RectoVerso offers the newest backup (see Moving to a new iPhone). Two phones studied side by side don’t merge by themselves: a library backup’s Add its decks does that.
Do I still grade my answer?
No. You say whether you know it, and RectoVerso measures how much of the answer you revealed. Before the whole answer shows, the buttons are I don’t know and I know it (or I know the rest); once it shows, I didn’t know and I knew it. I know it and I know the rest are checked: the whole answer shows, and Next card lets the claim stand, or I was wrong takes it back.
The rating follows from that, never from a difficulty you choose. I know it with nothing revealed is Easy; a right answer with less than 60% revealed is Good, with 60% or more Hard; I don’t know, I didn’t know and I was wrong are Again. New and relearning cards use Good instead of Hard. What’s revealed can be letters, a formula’s terms or part of a picture. Choosing the rating from the reveal is our design, not yet tested in a study. Spaced repetition and FSRS: what’s known, and what’s ours.
What does "3 of 8 letters" mean for the schedule?
That you revealed three letters of an eight-letter answer before you answered. The schedule (FSRS-6) takes it as a right answer that needed some help: Good. I know it with nothing revealed counts as Easy; revealing 60% of the answer or more counts as Hard once a card is past its first steps. Three tests in four like that make the card fragile (see Fragile cards).
Which Anki decks work?
Decks exported as .apkg or .colpkg, by any version of Anki. Cards come with their pictures, sounds, schedule and history. That includes math, chemistry, code, Japanese with furigana, Chinese with tone colors, tables and image occlusion. After an import, RectoVerso lists what it skipped: drawings, answers that are only a sound, cards whose picture isn’t in the file (see Importing from Anki).
Is my text sent anywhere when I make cards from it?
No. Apple Intelligence writes the cards on your iPhone.
What if RectoVerso says it couldn't read my saved reviews?
The file is kept aside, never overwritten, and reviews from then on are saved as usual. A library backup includes the file set aside: send it to us and we’ll look.
Is exporting free?
Yes, always: backing up, restoring and exporting for Anki.
Why is there no Listen button?
The card has no recording, and its deck has no answer language: choose one in the deck’s ⋯ › Deck options › Answer language.
Which iPhones does RectoVerso run on?
Every iPhone on iOS 27.0 or later. On iPhone Duo you open the phone to reveal the answer; on any other iPhone you slide it up. The cards, the schedule and everything else are the same. Making cards from a text needs Apple Intelligence, which some iPhones can’t run: on those, New deck from a text… isn’t shown.
Can I take an answer back?
Yes. Undo, in the review, takes back one step at a time: an answer, an I was wrong, a flag, an edit, a bury or a suspend. Shaking the phone undoes too. Every answer is saved as it’s made, so closing the review loses nothing either.
Nothing here matches “”. Try other words, or write to us.
Still stuck?
Write to rectoverso@code-think.com. Say which iPhone and which version of RectoVerso (⋯ › Settings › About), and what happened. If a deck or a backup is involved, attach it: nothing is sent unless you send it.