Busuu vs Duolingo

Busuu vs Duolingo comes down to a simple trade-off: busuu builds a structured course around CEFR levels and real human feedback, while Duolingo turns language learning into a game you can play for free, forever, without ever finishing. Both have taught millions of people their first words in a new language, but they get you there in very different ways. If you already know which style fits how you learn, the choice is easy. If you are not sure, the details below should settle it.

Course structure: CEFR levels vs a game tree

Busuu organizes everything around the Common European Framework of Reference, the same scale used by universities and employers to describe language ability. You move through A1, A2, B1, B2, and in a few languages like Spanish and English, C1, with each level built from themed units on real situations: ordering food, asking for directions, talking about work. Grammar explanations sit right next to the exercises, so you always know why a sentence is built the way it is.

Duolingo skips the CEFR labels almost entirely and instead hands you a skill tree that unlocks as you go, with units turning from gray to colorized as you clear them. It teaches by pattern, showing you dozens of example sentences until the grammar clicks on its own rather than being explained upfront. That works well for building intuition, but it means Duolingo learners sometimes struggle to say what level they are actually at, since the app measures streaks and crowns, not CEFR bands.

Community corrections vs the game loop

Busuu's signature feature is its community: you record a short speaking or writing exercise, and native or fluent speakers of your target language correct it, while you return the favor for people learning your own language. It is a genuinely useful idea, real humans catching real mistakes, but the quality is uneven. Busuu itself does not require correctors to prove native fluency, so you sometimes get feedback from another learner rather than a native speaker, and turnaround can take hours or days.

Duolingo has no community correction layer at all. Instead it relies on instant right-or-wrong grading, streaks, experience points, and leagues that rank you against other users each week. That loop is addictive in a good way, it is a large part of why so many people open the app daily, but the feedback stops at "correct" or "incorrect." Neither approach tells you how you actually sound when you speak out loud, which is a gap worth being honest about before you commit weeks to either app. For a closer look at how busuu's community model performs in practice, see the full busuu review.

Pricing: what each app actually costs

Duolingo's free tier is the most generous of the two by far, letting you work through full courses with ads and limited hearts. Busuu's free version only unlocks the first unit of each level, so you hit a paywall much sooner.

Busuu frequently runs 30 to 50 percent off promotions on Premium, so the price you see on your first visit is rarely the price everyone pays. Duolingo's family plan, around 10 dollars a month for up to six people, is worth checking if you want to split the cost with a partner or your kids.

Speaking practice: the part both apps underplay

This is where the comparison matters most if your actual goal is holding a conversation. Busuu's speaking exercises are recordings you send off and wait on, useful for pronunciation but not a real conversation. Duolingo's speaking prompts are short, scripted, and forgiving enough that you can often get through them without really producing the language yourself. Neither simulates the pressure and rhythm of an actual back-and-forth.

That is the specific gap Comigo was built to close. Every lesson is a spoken conversation with Capy, a capybara companion who talks to you and listens as you answer out loud into the mic, giving you per-word green and red feedback on what you actually said. There is also Free Speak, a real-time AI voice conversation with Capy about anything you want, with live captions so you can follow along. If busuu and Duolingo have gotten you comfortable with vocabulary and grammar but you still freeze up when someone actually talks to you, that live speaking practice at Comigo fills in exactly what those two apps leave out.

Certificates and proof of level: busuu's diplomas vs the Duolingo English Test

If you need something to show for the hours you put in, busuu and Duolingo offer very different kinds of proof, and they are not really comparable.

Busuu's Premium Plus tier includes official certificates developed with McGraw-Hill for each CEFR level you finish, from A1 through the highest level offered in that language. These are course-completion certificates: they confirm you worked through busuu's curriculum for that level, and they are a reasonable thing to add to a resume or LinkedIn profile, but they are not a standardized, independently graded exam score.

Duolingo's answer sits outside the regular app entirely. The Duolingo English Test (DET) is a separate paid product, an English-only proficiency exam you take on your own computer whenever you want, with results back in about two days. It runs roughly an hour, mixes adaptive question types with a short recorded speaking and writing sample, and is accepted by thousands of universities and colleges worldwide as an alternative to TOEFL or IELTS for admissions. Nothing you do inside the regular Duolingo app counts toward it, streaks and crowns do not carry over into a DET score.

In practice, busuu's certificates are a nice bonus for learners who want a tidy marker of progress, while the Duolingo English Test is a genuine alternative to a formal exam if you are applying to study or work abroad and need an English score a university will accept. If you are weighing busuu on the strength of its certificates, the busuu review covers how the CEFR curriculum behind them actually holds up level by level.

The honest verdict

Pick busuu if you want a defined course with a clear endpoint and are willing to pay for structure and human feedback, even if that feedback is sometimes uneven. Pick Duolingo if you want a free habit-forming app that keeps you showing up, and you are less concerned with hitting a specific CEFR level. If your real goal is speaking confidently, neither is a complete answer on its own, and pairing whichever you choose with dedicated speaking practice will get you further than sticking to one app alone. For more comparisons like this one, browse the full language app reviews hub, including how Rosetta Stone stacks up against Duolingo and whether italki or Preply makes more sense if you want a human tutor instead of an app. You can also try Comigo's free tools to check your current level before picking a plan.