A disclosure up front: we make Qlango, a competing language app, so read this with that in mind. We've tried to give Duolingo its due, and every fact here was checked on Duolingo's own blog, course pages and annual report, plus reporting on its AI announcement, as of October 2026.
Is Duolingo worth it? For most people, the free version is worth it as a daily habit and a gentle start, and not worth it as your only method if you want to hold real conversations. Super Duolingo is worth paying for if the ads and limits are what stop you practising. That's the short version. Here's the longer one.
What Duolingo is in 2026
Duolingo offers more than 40 languages and, counting every pairing of the language you learn with the one you learn from, over 250 courses. Every course is free to access. Free learners see an ad after each lesson and work within a limit, the old Hearts or, since 2025, an Energy meter that drains as you do lessons and refills over about a day, faster with an ad or gems.
Two subscriptions sit on top. Super Duolingo removes ads and limits and adds personalised practice and some offline lessons, with a family plan for up to six. Duolingo Max, priced higher and offered to part of the user base, adds AI features: Video Call with the character Lily and Roleplay, available in a handful of big languages.
Recent changes matter for this question. In January 2026 Explain My Answer, which explains why your answer was right or wrong, became free in courses teaching Spanish, French, German, Japanese, Portuguese, Italian and Korean. In April 2026 Duolingo extended nine courses, English, Spanish, French, German, Italian, Portuguese, Japanese, Korean and Chinese, to CEFR level B2 for most learners. Before that, most learners in those courses could only reach A2. The app also now includes Math, Music and Chess.
What Duolingo does well
It gets people to show up. Duolingo says about 43 million daily users had a streak of seven days or more at the end of 2025. Whatever you think of streak anxiety, consistency is the single most underrated factor in learning a language, and Duolingo engineers it better than anyone.
It costs nothing to start. You can try Turkish, Welsh and Japanese in one evening and find out which one you actually enjoy, which is worth a lot before you commit money or months.
It's well designed for beginners. Short lessons, instant feedback, audio on almost everything, Stories for reading and DuoRadio for listening make the first months painless. Duolingo also points to its own internal study, which found that learners who completed five sections reached proficiency comparable to five university semesters. It's the company's own research, so weigh it accordingly, but it isn't nothing.
Where Duolingo falls short
It can reward the game more than the language. The most repeated complaint on Reddit is that XP, leagues and streaks become the goal, and that you can protect a 500-day streak with the easiest lesson available while learning very little. The 2022 switch to a single fixed learning path also drew heavy criticism on r/duolingo from people who wanted to choose what to study.
Conversation is the weak link. Translating sentences and tapping word tiles builds recognition far faster than the ability to produce speech under pressure. Many long-time users say they could read surprisingly well and still froze in real conversation. The AI speaking features help, but sit behind the most expensive tier and only in some languages.
The free experience is more restricted than it was. Long-time free users have been vocal about disliking the move from Hearts to Energy, and about ads. On Trustpilot, reviews of Duolingo are dominated by billing and customer-support complaints, which says more about subscription handling than teaching, but is worth knowing.
The AI question bothers some learners. In April 2025 chief executive Luis von Ahn announced an "AI-first" approach, including gradually stopping the use of contractors for work AI can handle, and Duolingo launched 148 courses created with generative AI, mostly at A1 to A2 at launch. Critics worried about accuracy; Duolingo says its learning designers use AI to create and validate content and that every course meets its quality standards, and von Ahn later said no full-time employees had been laid off. Whether that matters to you is a values question as much as a learning one.
Is Duolingo worth it for Spanish, French or Japanese?
For Spanish and French, Duolingo's courses are among its most developed and now reach B2, so the app can carry you further than it used to. Pair it with listening and conversation and it's a solid backbone.
For Japanese and Korean, a long-running complaint on Reddit has been that the courses felt thinner than the European ones, particularly on grammar. Both were extended to B2 in April 2026, so some of that criticism is out of date, but learners of these languages generally still add a textbook or a dedicated grammar resource.
For other languages, check how far the course goes before you invest years; the B2 expansion covered only those nine.
Is Super Duolingo worth paying for?
Super is worth it if ads and energy limits are what actually interrupt your practice, or if a family plan makes it cheap per person. It doesn't add course content: free users get the same lessons, just with ads and fewer of them per day. If you can live with that, the free version teaches the same material.
Duolingo Max is a narrower case. Video Call and Roleplay are genuinely useful for low-stakes speaking practice in the languages that have them. If you're learning one of those languages and won't book a human tutor, it can be worth trying; if you'd rather talk to a person, the extra money goes further on a few tutoring sessions.
How to get more out of Duolingo
- Treat the streak as a floor, not a goal: do one real lesson, not the easiest one.
- Say every sentence out loud, even when the app doesn't ask.
- Use Stories and DuoRadio; they're the closest Duolingo gets to real input.
- Add a second source once you're past A1, such as podcasts, graded readers or a conversation partner. Our guide to vocabulary learning methods explains why varied exposure beats repetition alone.
- Set expectations: our piece on how long it takes to learn a language gives realistic hour counts.
When another app fits better
If you want explained grammar, compare it with Babbel in our Duolingo vs Babbel breakdown. If your language isn't on Duolingo, or you want to learn through your own native language rather than English, Qlango teaches 80 languages, including Albanian, Georgian, Hausa, Shona, Xhosa and Uyghur, with CEFR-based courses, spaced repetition, games and chat with other learners. There are more options in our list of Duolingo alternatives.
FAQ
Can you become fluent with Duolingo alone?
Very unlikely. Duolingo can take you to a solid base, and in its nine most popular courses to B2 content, but fluency needs lots of listening, reading and real conversation alongside it.
Is Duolingo worth it anymore after the AI changes?
As a learning tool, the main courses have improved: free grammar explanations and B2 content arrived in 2026. If you object to AI-generated content on principle, that's a reason to look elsewhere regardless of quality.
Is the free version of Duolingo enough?
For learning, yes; the course content is the same. Super buys convenience: no ads, no energy limits and some offline lessons.
How long should I use Duolingo each day?
Fifteen to twenty minutes of focused lessons beats an hour of grinding easy ones for XP, as long as you add other practice.
If you'd like short lessons in a language the owl doesn't teach, or from your own native language, Qlango is free to start and the first lesson takes a few minutes.
