# sumi - quiet flashcards — Spaced repetition & .apkg

> Calm spaced repetition flashcards with FSRS algorithm and offline study. (iPhone/iPad app by EDEN LOXLEY TIGER ROYE.)

- Source: https://appshunter.io/ios/app/sumi-quiet-flashcards/id6759393853 (this page in markdown: same URL + `.md`)
- Developer: [EDEN LOXLEY TIGER ROYE](https://appshunter.io/developer/1878403819)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Rating: 4.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2026-03-10
- Data updated: 2026-08-07
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sumi-quiet-flashcards/id6759393853/reviews.md

## What is sumi?

You believe in spaced repetition. You bounced off the complicated apps.

sumi is for you. It keeps the science and drops the friction, so revision feels calm
instead of overwhelming.

HOW IT WORKS
Make a deck or import one, then open sumi and review the cards it gives you that day.
That is the whole routine. sumi uses FSRS, the modern spaced-repetition algorithm, to show
each card right before you would forget it, so you remember more while studying less.

CALM BY DESIGN
An ink-on-paper interface with nothing competing for your attention. No streaks guilting
you, no leagues, no badges. A gentle daily review you will actually want to come back to.

BRING YOUR OWN DECKS
Already have decks? Import them in seconds. sumi reads Anki .apkg files, plus CSV, TXT and
JSON, so moving over takes minutes, not an afternoon.

PRIVATE BY DEFAULT
No account. No servers. Your cards, your progress and your history never leave your device.
Nothing is tracked. Nothing is uploaded. Your data stays with you.

BUY ONCE, YOURS FOREVER
No subscription. Unlock sumi pro one time and keep it: unlimited decks and cards, unlimited
imports, cram and reverse study modes, and detailed progress insights. Restore anytime.

WHAT YOU GET
- FSRS spaced repetition that schedules every review for the best long-term memory
- Import from Anki (.apkg), CSV, TXT and JSON
- Study offline, anywhere
- Clean stats: retention, review history, cards mastered
- Light and dark, easy on the eyes

Calm, focused and entirely on your device. That is sumi.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| sumi pro - monthly | $1.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| sumi pro - lifetime | $9.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sumi-quiet-flashcards/id6759393853/reviews.md

### 4/5 — Easy to use / Needs randomization

*2026-05-24*

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.

**Developer response:** Thanks for the feedback Rick! We really appreciate it, as a solo developer updates take a little longer but we will definitely be incorporating this into the next one! Thanks again for using Sumi!

## Frequently asked questions about sumi

### 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.

## Version history (last 2 releases)

### 1.2.0 — 2026-06-11

sumi just got a big, calm refresh.

- A cleaner home with a quieter, more focused layout
- Redesigned study flow: recall first, then reveal and rate
- Tap once for dark mode, right from the home screen
- A friendlier Getting Started guide built right in
- Smoother, faster, and more reliable throughout

As always: no account, no servers, nothing leaves your device.

### 1.0 — 2026-03-10

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-07.*