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CardettaExam flashcards for iPhone

Every card seen before the exam.

Bring your Anki deck, a spreadsheet or pasted text. FSRS brings each card back as you’re about to forget it, and an exam date paces the new ones so you see them all in time.

Free for one deck and 50 cards. Unlimited is £2.99 a month or £19.99 a year, with a free first week for new subscribers.

iPhone · iOS 26 or later · No account

Studying

One card at a time.

Today’s cards wait in a single pile, each question in your own words. Answer it in your head, then tap to turn it over.

Say how it went.

Again, Hard, Good or Easy, each showing when the card would come back. FSRS, the open-source scheduler, sets the date: here Good brings Osmosis back in 3.3 months.

The pile gets thinner.

The next card rises and the pile under it shrinks, so you can see what’s left before you read it: 16 to go, then 15.

Study: the card Osmosis, question side, on a pile with 16 to go, and a Show answer button. The answer showing under the question, with Again 10m, Hard 2.4mo, Good 3.3mo and Easy 5.2mo below. The next card, Enzyme, on a pile with 15 to go.

Why this card, today

Ask why a card is here today.

Tap ⓘ on any card. Cardetta says why it’s due in a sentence, then shows the numbers FSRS used: how likely you are to recall it now, how long you remember it, and how hard it has been.

The exam date

Give the deck its exam date.

If there are too many new cards for the days left, the daily number goes up so you finish them with a fifth of the time to spare for review. Reviews due after the exam come forward, here about one a day.

See if you’re on track.

The deck counts the days left and the cards you haven’t seen. Here that’s 7 cards with 23 days to go, which fits the usual 20 a day.

Deck settings for Biology: cells with Exam date on, Date 7 Nov 2026, New cards a day 20 (no change), Reviews brought forward about 1 a day. The Biology: cells deck: 17 to study now, and Exam in 23 days, Sat 7 Nov, 7 not yet seen, 8 reviews due after the exam, 20 new a day.

Your cards

What you write stays exactly as you wrote it.

Nothing in Cardetta rewrites a card you write. There’s no AI in it, so your shorthand and your notes to yourself stay put.

Hide words in a sentence and number them, and each number becomes a card of its own, with a gap where the word was.

Anki in, Anki out

Bring the deck you already have.

Open an Anki package from Files, Mail or the share sheet, and its pictures, sounds and cloze cards come with it. CSV files and pasted text work too.

Check it, then add it.

You see the first cards and the count before anything joins your library. Anki’s review history stays behind, so the cards start as new.

Take it with you.

Export any deck as an Anki package or a spreadsheet. Bring a Cardetta export back in and it updates the cards instead of doubling them.

The Import sheet with Biology cells.apkg, an Anki package: a preview of its first cards and the count, and where to put them. Import finished: 37 cards added to Biology: cells. Deck settings' Export section: Anki package, .apkg, opens in Anki; Spreadsheet, .csv.

Five more things it does.

Today’s count, on your Home Screen.

Home Screen and Lock Screen widgets show how many cards are waiting and how many days are left before the exam. Tap one to start studying that deck.

On your other iPhone too.

Decks and every answer sync through your own private iCloud. Pictures and recordings don’t sync, so another iPhone shows the card without them.

Pictures, and your own voice.

Add a picture from your library to either side of a card, or record how a word sounds.

How well it’s holding.

Each deck shows its retention: the share of reviews you’ve got right over the last 30 days.

No account, nothing collected.

There’s nothing to sign up for, and Cardetta’s App Store privacy label reads Data Not Collected.

How it compares.

Beside AnkiMobile, Quizlet, Knowt and Noji on the UK App Store, from their own pages, checked on 15 October 2026.

See the full comparison

  • Paced to your exam date.None of the other four lists a way to pace new cards to an exam.
  • Anki in and out, on the phone.AnkiMobile opens Anki packages too. Noji takes them through its website; Quizlet and Knowt take pasted text.
  • Where the others do more.Cardetta is only for iPhone. AnkiMobile works with Anki on computers, and Quizlet, Knowt and Noji run on Android and the web.

Free for one deck. Unlimited for the rest.

Free

£0

One deck and 50 cards.

  • Everything the app does: import, the exam date, widgets and export
  • Studying, editing and exporting are never blocked

Cardetta Unlimited

£2.99 a month

or £19.99 a year.

  • Every deck and every card
  • A free first week for new subscribers
  • Stop, and nothing is deleted or hidden

Cardetta Unlimited renews automatically unless you cancel at least 24 hours before the period ends, in your Apple Account’s subscription settings. UK prices; the App Store shows yours.

Questions.

Can I use my Anki decks in Cardetta?

Yes. Open an .apkg file from Files, Mail or the share sheet and its cards, pictures, sounds and cloze cards come in. Anki’s review history doesn’t, so the cards start as new. CSV, TSV and pasted text work too.

Do I need an account, or the internet?

No account, and your decks work offline on your iPhone. If you’re signed in to iCloud, your decks also sync through your own private iCloud database, which Mirentha can’t see.

What happens when the exam date passes?

The plan stops changing anything and the deck goes back to its own number of new cards a day. Give it a new date for the next exam whenever you like.

How much is Cardetta?

Free for one deck and 50 cards, with every feature. Cardetta Unlimited removes both limits for £2.99 a month or £19.99 a year, with a free first week for new subscribers. UK prices; the App Store shows yours.

Does Cardetta use AI?

No. Nothing in the app writes, rewrites or summarises a card. FSRS, the open-source algorithm it schedules with, only decides when a card comes back.

Which iPhones does it run on?

Any iPhone with iOS 26 or later. Cardetta is made for iPhone, in English.

CardettaExam flashcards for iPhone

Every card seen before the exam.

On the App Store now, for iPhone.