1. Anki
Free spaced-repetition flashcards.
Pros
- Most effective memorization method
- Huge shared deck library
Cons
- Dated interface
- iOS app is paid
Best for: Vocabulary grinding that sticks · Price: Free desktop
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4 tested picks · 3 with a free tier · Updated 2026-09-18
Best duolingo alternatives: Anki — Free spaced-repetition flashcards. Best fully free: Anki. Compare all 4 below.
Duolingo's streaks hook beginners but plateau intermediate learners: Anki memorizes vocabulary fastest via spaced repetition, Memrise adds video natives, Clozemaster teaches in context at scale, and Babbel structures grammar properly. Match the tool to your level, not your streak.
All listed options are tested picks with genuine free tiers where flagged, and paid placements — when they exist — are always labeled Sponsored and never buy a ranking position. Combine one app with real input (shows, tutors, books) — no single app produces fluency alone.
| Tool | Price | Free tier | Best for | Rating |
|---|---|---|---|---|
| 🃏Anki | Free desktop | Vocabulary grinding that sticks | 4.7 / 5 | |
| 🗣️Memrise | Free tier | Listening-first learners | 4.3 / 5 | |
| 🧩Clozemaster | Free tier | Intermediate sentence volume | 4.2 / 5 | |
| 📘Babbel | From $14/mo | Grammar-serious beginners | 4.3 / 5 |
Sponsored rows are highlighted but ranked by the same editorial order — payment never buys position.
Free spaced-repetition flashcards.
Pros
Cons
Best for: Vocabulary grinding that sticks · Price: Free desktop
Video natives plus smart review.
Pros
Cons
Best for: Listening-first learners · Price: Free tier
Mass sentence practice in context.
Pros
Cons
Best for: Intermediate sentence volume · Price: Free tier
Structured grammar courses.
Pros
Cons
Best for: Grammar-serious beginners · Price: From $14/mo
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