Education tools / Duolingo
Duolingo
Learn languages by playing a game. It's 100% free, fun, and scientifically proven to work.
Where it stands
3.4 / 5
Signals score
Not a hands-on test
Based on 2 of 3 signals
- Website health3.7 / 5 · weight 50%
Measured from the tool's public website
- Community3.1 / 5 · weight 20%
What people said in public discussions
Built only from what we can measure or quote without using the tool. How ranking works
Rank by signals
We have not run our own hands-on test on Duolingo yet. How tests work
Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.
Measured signals
3.7 / 5 · measured 2026-11-08Read automatically from Duolingo's public website: how reliable, secure, private and open the site is. This is not a test of how well the tool does its job. How this is measured
- Reliability5 / 5The page answered and finished downloading in 19 ms.
- Security2.8 / 51 of 5 protective headers set (x-frame-options).
- Privacy5 / 5No third-party tracking services found on the page.
- Transparency1 / 5No privacy policy linked; no pricing page linked.
Community feedback
3.1 / 5 · 17 commenters53% of the 17 people whose comments we could classify were positive. Read automatically from public Hacker News threads about Duolingo; the classifier is simple and can misread sarcasm, so check the threads. How this works
- Positive
“But now you need to explain how you made Duolingo money. First idea, your product has a paid tier, add it as a feature to the paid tier too boost paid user retention and new signups. They'll be focused on the users who…”
Read in the thread - Positive
“Amazing approach (like Michel Thomas but more charming and modern and free!): Of all the language apps I used Duolingo has by far been the least useful. I've spent hundreds of hours but took barely anything away (for FR,…”
Read in the thread - Critical
“I even forgot there were ads because I haven't seen one since I enrolled - in eluding the annoying self promotion ads for Super Duolingo. I have a 1631 streak at the moment, so it is saving me quite a bit of time not…”
Read in the thread - Critical
“In fairness to duolingo, nearly everything duolingo does is like this. They are extremely metric and process driven (for better and worse of actual users).”
Read in the thread
Threads: Duolingo Max, a learning experience powered by GPT-4 (2023, 244 comments) · How Duolingo achieved a 50:50 gender ratio for new software engineer hires (2018, 107 comments) · Duolingo podcast: The kiddnapping of Luis von Ahn's aunt (2018, 36 comments) · Duolingo removing its discussion forums (2022, 12 comments)
Listed, not yet tested
This tool answered when we visited its site on 2026-11-10. The description above is the tool's own. We have not tested it or recorded facts about its limits, pricing or privacy, so it has no score. Are you the maker? Claim this listing to correct details and request a test.
Are you the maker of Duolingo? Link to this page
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<a href="https://agathox.com/tools/duolingo">Duolingo on agathox: compared and tested</a>
Tasks and scores
- Language learningNot tested yet
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