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 researched picks · 3 with a free tier · Last reviewed 2026-09-18
Research method: official pricing/feature pages checked against the comparison criteria below. No hands-on lab testing is claimed.
Best duolingo alternatives: Anki — Free spaced-repetition flashcards. It is also fully free. Runner-up free pick: Memrise. 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 researched 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 |
|---|---|---|---|
| 🃏Anki | Free desktop | Vocabulary grinding that sticks | |
| 🗣️Memrise | Free tier | Listening-first learners | |
| 🧩Clozemaster | Free tier | Intermediate sentence volume | |
| 📘Babbel | From $14/mo | Grammar-serious beginners |
No numeric scores are shown — there is no disclosed reproducible scoring system. Order reflects editorial comparison on the criteria above; sponsored rows are highlighted but 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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