Review · Education
Duolingo review
The most popular free language app, with gamified bite-sized lessons and a paid Super tier.
By the KeenVerdict research desk · Updated November 4, 2026
- Features (40%)
- 8.6
- Ease of use (30%)
- 9.6
- Value (30%)
- 9.4
Duolingo is where most people start, and for good reason. Every course is free, lessons take a few minutes, and streaks, points and challenges make it oddly hard to skip a day. Lessons cover reading, writing, listening and speaking, and AI adjusts the difficulty to your level. Super removes ads, gives unlimited hearts so mistakes do not end a session, and adds personalized practice and mistakes review; a family plan covers up to six accounts. The limits are well known. Sentences can feel random, grammar is explained lightly, and learners who only use Duolingo often recognize a lot but struggle to speak. Treat it as a habit engine and vocabulary builder, then add structured lessons or a tutor. We could not confirm the USD price of Super from our location. As a free app it has no real rival.
Who it is for
Beginners and casual learners who need a free, fun daily habit.
Price
Free plan; Super Duolingo: see vendor pricing (USD check pending).
US price check pending. See the vendor pricing page.
Key features
- 100+ language courses plus chess and math
- Bite-sized lessons with points, levels and streaks
- AI-tailored lessons that adjust to your level
- Super adds unlimited hearts, no ads and mistakes review
- Super Family shares premium on up to 6 accounts
Strengths and weaknesses
- Strength: Full learning content is free
- Strength: Game mechanics make it easy to practice every day
- Strength: 1 week free trial of Super
- Weakness: Free tier has ads and limits mistakes with hearts
- Weakness: Rarely enough on its own to reach confident conversation
- Weakness: Our USD price check for Super is pending
Key facts
- Free plan: Yes, with ads
- Courses: 100+ language courses
- Learners: 500m+ total learners, per Duolingo
- Family plan: Up to 6 Super accounts
Where it ranks
Duolingo is No. 1 in our Best Language Learning Apps verdict.
Alternatives we scored
- Babbel8.7
- Mango Languages8.5
- Busuu8.4
- Pimsleur8.4
Visit duolingo.com · Questions or corrections: editorial@keenverdict.com