# Kartei: Study Flashcards — Spaced Repetition & Notes

> Spaced Repetition & Notes (iPhone/iPad app by Marc Hammerschmidt.)

- Source: https://appshunter.io/ios/app/kartei-study-flashcards/id6819690804 (this page in markdown: same URL + `.md`)
- Developer: [Marc Hammerschmidt](https://appshunter.io/developer/1838149940)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 8 MB
- Languages: American English, German (Germany)
- Released: 2026-10-10
- Data updated: 2026-10-14

## What is Kartei?

Turn good questions into knowledge that stays. Kartei combines your own flashcards with spaced repetition in a focused, native study space for iPhone, iPad and Mac.

KNOW WHAT TO STUDY NEXT
See which cards are due today. Reveal the answer, rate your recall honestly and let FSRS-6 calculate the next review. Choose your target retention and daily time budget.

MAKE CARDS THAT FIT YOUR SUBJECT
Create question-and-answer cards, cloze deletions and image occlusions. Add explanations, sources and tags. Organize your knowledge into decks, then find cards with search and filters.

GIVE EQUATIONS THEIR SPACE
Write mathematical and chemical formulas in TeX. Equations render offline, making Kartei a useful home for physics, calculus, biochemistry and other subjects that need more than plain text.

THINK IN YOUR OWN HANDWRITING
Write on the front and back of cards with your finger on iPad and iPhone, or with Apple Pencil on iPad. Your strokes stay editable. View and study handwritten cards on Mac.

KEEP THE EXPLANATION WITH THE QUESTION
Add images, voice recordings, audio, video and PDF attachments to your cards. Bring the material that helps you understand and remember.

STUDY LOCALLY. TAKE YOUR COLLECTION WITH YOU.
Your collection is stored on your device. Export cards, media and review history together, then import them on another device. Bring existing text cards into Kartei through CSV or TSV.

SEE YOUR ACTUAL PROGRESS
Track card reviews and the progress of your decks. Choose light or dark mode, and use keyboard shortcuts on Mac to keep your workflow moving.

Start with a sample collection covering physics, biochemistry and calculus. Then build your own flashcards for school, university, vocabulary or professional learning.

KARTEI PRO
Unlimited cards and decks, spaced repetition, formulas, images and export are free. Kartei Pro adds handwriting and sketches, audio and dictation, video and PDF. Choose a monthly or yearly subscription or a one-time purchase. Price and duration are shown before purchase. Subscriptions renew automatically unless canceled in your Apple subscriptions. A free trial is offered when eligible. Purchases can be restored in the app.

Privacy Policy: https://dimar2811.github.io/biohacker-support/kartei/privacy.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Kartei Pro Monthly | $3.99 | per month |
| Kartei Pro Yearly | $17.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kartei Pro Lifetime | $44.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-10-10

No release notes.

## More apps by Marc Hammerschmidt

- [Spur: Run Tracker & Gym Log](https://appshunter.io/ios/app/spur-run-tracker-and-gym-log/id6756827904)
- [Dimar: Family & Group Calendar](https://appshunter.io/ios/app/dimar-family-and-group-calendar/id6759800091)
- [GLP-1 Compass: Shot Tracker](https://appshunter.io/ios/app/glp-1-compass-shot-tracker/id6766699963)
- [Verdant – Rooftop Garden](https://appshunter.io/ios/app/verdant-rooftop-garden/id6820593043)

All apps by Marc Hammerschmidt: https://appshunter.io/developer/1838149940

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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 2026-10-14.*