# Retention - Flashcards

> Retention - Flashcards (iPhone/iPad app by Dmytro Tymakhov.)

- Source: https://appshunter.io/ios/app/retention-flashcards/id6754805922 (this page in markdown: same URL + `.md`)
- Developer: [Dmytro Tymakhov](https://appshunter.io/developer/1850195405)
- Category: Education, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 7 MB
- Languages: American English, European Portuguese, Chinese (Simplified, China), European Spanish, Ukrainian
- Released: 2026-04-02
- Data updated: 2026-06-10

## What is Retention?

Stop wasting hours studying only to forget everything a week later.

Retention uses scientifically proven spaced repetition to help you remember anything - languages, medical terms, history, code, or any knowledge that matters to you. Study smarter, retain longer, and finally build the knowledge that sticks.

SCIENCE-BACKED LEARNING

Our brains aren't designed for cramming. They're optimized for spaced repetition—reviewing information at increasingly longer intervals, right before you forget it.

Retention implements the SM-2 algorithm, refined over 30+ years of cognitive science research. It calculates the perfect moment to review each card, transforming short-term cramming into permanent knowledge.

The result? Learn in half the time with better retention.

HOW IT WORKS

1. Create flashcards or import from Anki
2. Study and rate your recall (Again, Hard, Good, Easy)
3. Retention schedules your next review automatically
4. Difficult cards appear more frequently
5. Mastered cards space out into long-term memory

The algorithm adapts to you. Your personal learning curve determines when you see each card next.

PRIVACY YOU CAN TRUST

Your flashcards never leave your control.

Everything stores locally on your device or syncs through your personal iCloud account. We don't collect data. We don't track usage. We don't have servers storing your information. We literally cannot see what you're studying.

Your knowledge is yours. Period.

OBSIDIAN INTEGRATION

For knowledge workers and note-takers: Retention integrates seamlessly with Obsidian vaults.

Create flashcards directly in your markdown notes using simple syntax. Edit anywhere—Retention or Obsidian—and changes sync bidirectionally. Your vault remains your single source of truth while Retention handles the spaced repetition magic.

EVERYTHING YOU NEED

• Scientifically optimized spaced repetition (SM-2)
• Clean, distraction-free interface with dark mode
• Rich media—add images and audio to any card
• Multiple formats: basic cards, Q&A, markdown
• Progress tracking with streaks and heatmaps
• Study analytics to understand your learning
• Import Anki decks (.apkg) with full history
• 5 languages: English, Ukrainian, Spanish, Portuguese, Chinese

WHO IT'S FOR

Medical students memorizing thousands of terms. Language learners building vocabulary. Developers learning new frameworks. Students preparing for exams. Professionals studying for certifications. Anyone serious about remembering what they study.

WORKS EVERYWHERE

Start studying on iPhone during your commute. Continue on Mac at your desk. Everything syncs seamlessly through iCloud.

WHY RETENTION IS DIFFERENT

Most flashcard apps treat you as the product, harvesting your data and selling subscriptions. We built Retention differently.

No subscriptions. No analytics. No dark patterns. No data collection. Just a powerful tool that respects your privacy and helps you build lasting knowledge.

Download Retention and make your learning permanent.

## Is Retention safe?

Not enough ratings yet to assess Retention.

## Is Retention legit?

Retention - Flashcards is no longer available in the App Store. The AppsHunter Legitimacy Score for Retention is 23 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.0.2 — 2026-04-07

• Smoother Studying: Polished card flip and transition animations, plus faster deck and card loading
• Obsidian Improvements: Stray #flashcards tags no longer appear in cards
• New Acknowledgments Page: Added to Settings alongside libraries and themes
• Bug Fixes: Various stability improvements and UI fixes

### 1.0.1 — 2026-04-04

•  Audio Improvements: Fixed audio autoplay interruptions and ensured the speed control button is always visible
•  Heatmap Redesign: Cleaner style and layout for better readability
•  UI Fixes: Removed empty gaps in deck headers and stabilized card editor behavior
•  New About Section: Added version info, privacy policy, and rate app links in Settings
•  Bug Fixes: Various stability improvements and fixes

### 1.0 — 2026-04-02

No release notes.

## More apps by Dmytro Tymakhov

- [Munr](https://appshunter.io/ios/app/munr/id6768250763)

All apps by Dmytro Tymakhov: https://appshunter.io/developer/1850195405

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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 2026-06-10.*