The only flashcard app that combines AI extraction, spaced repetition, quiz games, and a public deck library — all in one place.
| Feature | Words on Repeat | AnkiDecks | Anki | Quizlet | Memrise | Brainscape |
|---|---|---|---|---|---|---|
| Content & Decks | ||||||
| Official curated decks | 185+ (12 langs) | N/A | 0 (community) | Limited | ~15 courses | Limited |
| CEFR coverage | A1–C2 | N/A | N/A | N/A | A1–B2 | N/A |
| Example sentences | ✓ Every word | Some | Rare | ✗ | ✓ | ✗ |
| Grammar notes per word | ✓ | ✗ | ✗ | ✗ | Course-level | ✗ |
| Grammar cards | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ |
| Free access to all decks | ✓ | N/A | ✓ | Limited | Paid | Limited |
| Study & Algorithm | ||||||
| Spaced repetition | FSRS | FSRS | FSRS | Basic | Basic SRS | CBR |
| Study modes | 3 (Standard, Reverse, Recall) | 1 | 1 (+ add-ons) | 1 | 1 | 1 |
| Quiz games | ✓ 8 modes | ✓ | ✗ | Paid only | ✗ | ✗ |
| Daily goals & streaks | ✓ | ✗ | Add-on | ✗ | ✓ | ✗ |
| Push reminders | ✓ | ✗ | ✗ | ✗ | App only | ✗ |
| Public deck library | ✓ | ✓ | ✓ | ✓ | Courses only | ✓ |
| Platform | ||||||
| Works in browser | ✓ | ✓ | ✗ | ✓ | ✓ | ✓ |
| Install as app (PWA) | ✓ | ✓ | N/A | N/A | N/A | N/A |
| Offline support | ✓ (PWA) | PWA | ✓ | Paid only | ✗ | Partial |
| Dark mode | ✓ | ✗ | Add-on | ✓ | ✓ | ✗ |
| Data export | ✓ | ✓ (.apkg) | ✓ | Limited | ✗ | ✗ |
| Open source | ✗ | ✗ | ✓ | ✗ | ✗ | ✗ |
| AI & Content Import | ||||||
| AI vocabulary extraction | ✓ | ✓ | ✗ | Paid only | ✗ | Paid only |
| AI features on free tier | ✓ 5 extractions/mo | ✓ 4 generations/mo | ✗ | ✗ | ✗ | ✗ |
| Import from URL / PDF | ✓ | ✓ | ✗ | ✗ | ✗ | ✗ |
| YouTube subtitle import | ✓ (Pro) | ✓ | ✗ | ✗ | ✗ | ✗ |
| Anki import / export | ✓ Import free, export Pro | ✓ (.apkg export) | Native | ✗ | ✗ | ✗ |
| Pricing | ||||||
| Free tier | Yes | Yes (limited) | Yes (desktop only) * | Yes (basic SRS) * | Yes (limited) | Yes (very limited) |
| Paid price (monthly) | $5.99/mo | $7.99/mo | N/A | $3.00/mo | $6.67/mo | $7.99/mo |
| Paid price (annual) | $59/yr | $60/yr | $24.99 iOS one-time | $35.99/yr | $79.99/yr | $95.88/yr |
| Features included (of 23) | ||||||
| Score | 22 | 13 | 10 | 10 | 9 | 7 |
* Anki's free tier is desktop-only — the iOS app costs $24.99. Quizlet's free tier includes unlimited cards but only basic spaced repetition; AI, quiz games, and offline access require a paid plan. Score counts features with full or partial support across 23 feature rows; pricing rows excluded.
Other apps do one thing well. Words on Repeat does everything — 185+ curated decks with example sentences and grammar notes, AI extraction from any source, 3 study modes, 8 quiz games, FSRS spaced repetition, and daily reminders — without switching between tools. Browse public decks. Curious how FSRS actually schedules reviews? Try the interactive forgetting-curve simulator.
Strong AI extraction with YouTube and PDF support. But AnkiDecks is a deck generator — it lacks daily goals, push reminders, and dark mode. You still need a separate app to study properly. WoR handles both creation and study in one place.
Powerful, free on desktop, and open source. But no AI extraction, no browser access, and basic features like dark mode or daily goals require add-ons. Steep learning curve. WoR gives you the same FSRS algorithm with a modern, ready-to-use interface.
Popular and affordable at $35.99/yr. But AI features and quiz games are paywalled, spaced repetition is basic, and there are no push reminders or daily goals. WoR includes all of these on the free tier.
Good for course-based learning with built-in daily goals. But expensive at $79.99/yr, no AI extraction, no data export, and push notifications only work in their native app. WoR gives you more features for less.
Confidence-based repetition with a clean interface. But the most expensive option at $95.88/yr, a very limited free tier, no AI extraction, no dark mode, and no data export. WoR offers more at every price point.
Feature and pricing data based on publicly available information as of May 2026. Trademarks belong to their respective owners.
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