Flashback vs LeitnerAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flashback
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Flashback Flashback is a Spaced Repetition Flashcards App where as you master cards they show up less and less frequently, using the Leitner Box method. Key Features • No ads, no data collection, no signup • Quick Review Decks – Automatically created collections of cards you are struggling with, like “Failed Last week”, “Most Failed Cards”, and “Failed Twice in a Row”. • "Rebalance" - When you take some time off, reset your schedule rather than have all cards due immediately • Statistics - Each card tracks how often you got it right or wrong Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
LeitnerAI
This application uses the Leitner system to help users learn and memorize vocabulary. Words are sorted into boxes based on mastery, with AI assisting in creating an optimal learning path. It focuses on efficient study by prioritizing difficult words.
- Leitner system for spaced repetition
- Vocabulary memorization
- AI-generated learning paths
- Progress tracking through study boxes
- Focus on difficult words
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No extra features. No distractions. LeitnerAI uses the proven Leitner system to help you memorize vocabulary through spaced repetition. • 5-box Leitner system — words progress as you learn them • Interactive flashcards with hints and translations • AI-powered word generation (optional) • CSV import for bulk vocabulary • Daily reminders and study streaks • Weekly goals and milestone tracking All words start in Box 1. Remember a word and it moves forward. Forget it and it returns to Box 1. Easy words step aside; hard words get your attention. Built for one thing only: learning and memorizing vocabulary.
Screenshots
Verdict
The clearest difference is in-app purchases: LeitnerAI at none against Flashback's 3. LeitnerAI also leads on device support (3 vs 1) and iOS requirement (16.0 vs 18.0). Flashback's advantage is update cadence (every 6 days vs every 3 weeks). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Flashback sells 3 in-app purchases, starting at $0.99 per month. LeitnerAI asks for nothing beyond the download.
Flashback ships an update every 6 days, LeitnerAI every 3 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | Flashback | LeitnerAI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | Every 6 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Strawlight Software Ltd | Amir Faghihi |
In-app purchases
Flashback
- Flashback Premium$0.991 Month
- Flashback Premium$7.991 Year
- Flashback Premium$3.99
LeitnerAI
No in-app purchases
