Duolingo: verified facts and rating
Checked 2026-10-30
Score breakdown
71% backed by facts · How we rank
Duolingo strengths and weaknesses
Pros
- Many languages to learn
- You can start for free
- The company publishes learning efficacy research
- Automated speaking practice with feedback
Cons
- No refunds
All facts
| Fact | Value | Source | Checked |
|---|---|---|---|
| Languages to learn | 40 | duolingo.com | 2026-10-29 |
| Lessons with a human teacher | Not verified | — | |
| Speaking practice (speech recognition or AI partner) | Yes | duolingo.com | 2026-10-29 |
| CEFR-aligned levels or certificate | Yes | duolingo.com | 2026-10-29 |
| Free plan or free trial | Yes | duolingo.com | 2026-10-29 |
| Cheapest paid plan per month (or minimum lesson price) | Not verified | — | |
| Teacher vetting described | Not verified | — | |
| Refund policy | No | duolingo.com | 2026-10-29 |
| App Store rating | 4.7★ | itunes.apple.com | 2026-10-29 |
| App Store ratings | 5,540,738 | itunes.apple.com | 2026-10-29 |
| Company founded | 2011 | blog.duolingo.com | 2026-10-30 |
| Efficacy research published | Yes | duolingo.com | 2026-10-29 |
| Company country | United States | duolingo.com | 2026-10-29 |
| Company | Duolingo, Inc. | duolingo.com | 2026-10-29 |