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sumi - quiet flashcards

sumi - quiet flashcards

Spaced repetition & .apkg

2 ratings
2 reviews
📚 Education
📊 Productivity
Free
In-App Purchases

Details

  • Released
  • Updated
  • March 10, 2026
  • September 11, 2026

Features

Developer

EDEN LOXLEY TIGER ROYE
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iphone
ipad
🧾$9.99
In-App Purchase↘︎
⭐2
Reviews↘︎
❓8 answered
FAQ↘︎
📦~ in 3 months
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About

This app offers a calm and focused approach to revision using spaced repetition. It allows users to import or create study decks and provides intelligent scheduling for optimal memory retention without distracting gamified elements.

✓Spaced repetition with FSRS algorithm
✓Import Anki (.apkg), CSV, TXT, JSON decks
✓Offline study support
✓Detailed progress insights
✓Calm, distraction-free interface
✓No account or server required
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What's New in sumi

1.2.1

September 11, 2026

sumi 1.2.1 is a small, careful update. - Saving a backup or exporting a deck now opens the share sheet, so the file lands wherever you want it. - Text follows your iOS text size setting, right up to the largest accessibility sizes. - Larger imports, up to 50,000 cards, now show progress while they load. - Polish and VoiceOver improvements throughout.

More

Subscription plans

sumi pro - monthly

Unlimited decks, cards, imports

$1.991 Month
How to cancel sumi subscription ⁉️
1

In-App Purchases

$9.99

sumi pro - lifetime

Unlock unlimited decks, cards, and imports.

User reviews

Most RecentHighest RatedLowest Rated

icloud sync

the good app, but it’s not enough the icloud sync between all my devices
im.aquarim.aquar

Response from developer

Thanks for this, and it's a fair ask. There's no iCloud sync yet. It's the next big thing I'm building, but I won't promise a date I can't keep. In the meantime 1.2.1 lets you export a full backup from Settings and import it on your other device, so your decks and progress move across. Not automatic, but it works today.

Easy to use / Needs randomization

It was easier to import decks with this app than with others. The only suggestion I have is it would be nice to randomize the cards. It is too easy to predict the next answer when they are always in alphabetical order.
rickinpdxrickinpdx

Response from developer

Thanks for the feedback Rick! Good news, this one's done. Shuffle shipped in 1.2.0, so cards come up in random order by default now, and there's a toggle in Settings if you ever want them back in order. Thanks for nudging me to build it, and thanks for using sumi!

FAQ

How does sumi use spaced repetition?

sumi utilizes the FSRS algorithm to schedule card reviews at optimal intervals, just before you're likely to forget them. This method enhances long-term memory retention while minimizing study time.

Can I import my existing study decks into sumi?

Yes, sumi supports importing decks from Anki (.apkg) files, as well as CSV, TXT, and JSON formats. This makes it easy to transition your existing study materials.

Is sumi available on multiple devices?

sumi is currently supported on iPhone and iPad. The app is designed to be private by default, with no account or servers, meaning your data stays on your device.

What are the benefits of the 'sumi pro' unlock?

Unlocking sumi pro offers unlimited decks and cards, unlimited imports, cram and reverse study modes, and detailed progress insights. This is a one-time purchase for permanent access.

Does sumi have any gamified elements like streaks or badges?

No, sumi is designed to be calm and focused, intentionally omitting gamified elements like streaks, leagues, or badges. The goal is a gentle daily review experience.

How often is sumi updated?

The latest version of sumi is 1.2.0, last updated on 2026-06-11. Updates aim to improve functionality and user experience.

What is the age rating for sumi?

sumi has an age rating of 4+, making it suitable for a wide range of users. The app focuses on educational content and a simple user interface.

How much does sumi cost?

The base sumi app is free to download and use. Optional 'sumi pro' features can be unlocked with a one-time purchase, with a monthly subscription option also available for $1.99.