# OnLeitner: Flashcards & Review — Spaced repetition study cards

> Spaced repetition study cards (iPhone/iPad app by Ruben Gonzalez.)

- Source: https://appshunter.io/ios/app/onleitner-flashcards-and-review/id6760651622 (this page in markdown: same URL + `.md`)
- Developer: [Ruben Gonzalez](https://appshunter.io/developer/1885517252)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 27.0 · 5 MB
- Languages: American English, European Spanish
- Released: 2026-03-23
- Data updated: 2026-10-31

## What is OnLeitner?

Memorize anything with the Leitner system, the spaced repetition method students use to remember more while studying less.

OnLeitner is free, with no ads and no limits. Create as many boxes and cards as you need.

HOW IT WORKS
Create a box for each subject or topic and add question-and-answer cards. Every card moves through 5 levels: get it right and it moves up and comes back later; get it wrong and it starts over. Your time goes to what you actually find hard.

ONLY WHAT'S DUE TODAY
Each study session shows only the cards you need to review today, most overdue first. When you're all caught up, OnLeitner tells you when your next review is, and you can always review everything anyway.

WHO IT'S FOR
• High school and university students preparing for exams
• Anyone studying for certifications or civil service exams
• Language learners building vocabulary
• Anyone who wants to remember concepts, dates, formulas or definitions

TIP: CREATE YOUR CARDS WITH AI
Have your notes in a PDF? Export a sample box as JSON, give it to your favorite AI along with your notes, and ask it to write the cards in the same format. Import them into OnLeitner and start studying in seconds.

FEATURES
• Leitner method with 5 spaced repetition levels
• Sessions with only the cards due today
• Mastered cards marked with a star
• Automatic iCloud sync across your devices
• Import and export boxes as JSON
• Export any box to PDF to print it
• Boxes with custom colors
• Native Liquid Glass design for iPhone and iPad
• VoiceOver and Dynamic Type support
• Available in English and Spanish

YOUR PRIVACY
No accounts, no ads, no tracking. Your cards live on your device and in your iCloud, nowhere else.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| OnLeitner Premium | $0.99 | one-time |


## Is OnLeitner safe?

Not enough ratings yet to assess OnLeitner.

## Is OnLeitner legit?

OnLeitner: Flashcards & Review appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for OnLeitner is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 2.1 — 2026-10-30

OnLeitner is now free, with no limits.
• Unlimited boxes and cards, no purchases
• Each session brings only the cards due today; when none are left, you'll see when your next review is
• Miss a mastered card and it loses its star and starts over
• New About section in Help
• Better VoiceOver and Dynamic Type support
• Stability and performance improvements
If you bought Premium: thank you for supporting the app from the start.

### 2.0 — 2026-05-27

Rediseño completo.
• Nuevo icono
• Nueva identidad visual más limpia y minimalista
• Botones y controles consistentes en toda la app
• Color de acento más sutil
• Corregido un error al editar tarjetas existentes
• Premium ahora a 0,99€

Crear tarjetas y estudiar nunca fue tan fluido.

### 1.0.3 — 2026-04-21

Bug fixes and performance improvements.

### 1.0.2 — 2026-03-30

Nuevo icono para la app.

### 1.0.1 — 2026-03-28

Actualización menor: Nuevo icono de la app

## Apps similar to OnLeitner

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Learn Faster: Vocabulary](https://appshunter.io/ios/app/learn-faster-vocabulary/id6778174973) | — | Free | Education |
| [LeitnerAI - Simple Anki](https://appshunter.io/ios/app/leitnerai-simple-anki/id6755983344) | 4.5 (8) | Free | Education |
| [Leitner Mind: Learn Fast](https://appshunter.io/ios/app/leitner-mind-learn-fast/id6749334753) | 4.0 (1) | Free | Education |
| [Algo: Coding Logic Puzzles](https://appshunter.io/ios/app/algo-coding-logic-puzzles/id6478955967) | 3.5 (2) | Free | Education |
| [Be Native: Learn Swift](https://appshunter.io/ios/app/be-native-learn-swift/id6745868769) | 5.0 (2) | Free | Education |
| [SpeakGator: Language Practice](https://appshunter.io/ios/app/speakgator-language-practice/id6757098601) | 3.8 (5) | Free | Education |

## More apps by Ruben Gonzalez

- [OnBoard: Appointment Book](https://appshunter.io/ios/app/onboard-appointment-book/id6760704612)
- [OnShelf](https://appshunter.io/ios/app/onshelf/id6760916697)
- [OnBD2](https://appshunter.io/ios/app/onbd2/id6761005696)
- [Rastro: Deduction Puzzle](https://appshunter.io/ios/app/rastro-deduction-puzzle/id6763000801)
- [Apunto](https://appshunter.io/ios/app/apunto/id6768055349)

All apps by Ruben Gonzalez: https://appshunter.io/developer/1885517252

## Related topics

[leitner](https://appshunter.io/ios/topics/leitner)

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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 2026-10-31.*