Busuu vs Duolingo: CEFR route or broad free course?

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Inspect the exact language before choosing an app

Busuu publishes 14 languages with course ceilings ranging from A2 to C1. Duolingo lists more than 40 languages, but depth and source-language availability vary by course, so neither catalogue headline establishes fit for a particular learner.

Open the current course information for your target language and compare the next stage you need, not the most advanced stage advertised anywhere on the platform. A smaller catalogue can be sufficient when its relevant course is deeper; a larger catalogue can be decisive for a language the other product does not teach.

Compare the two free starting points

Busuu's free access includes essential course material, community feedback and basic progress tracking. Duolingo keeps its core language courses available free and uses that broad free path as the base for optional paid tiers.

Use the free version of the exact language for several real sessions before entering either checkout. Measure whether the next action is clear, explanations resolve mistakes and the routine fits the calendar without relying on a promotional trial deadline.

Choose Busuu for a visible route and community correction

Busuu organises courses around published level routes and lets learners submit selected exercises for correction by members of its community. That can add a human response layer to a structured self-study routine.

The community is not the same as a contracted teacher. Response speed, depth and reliability can vary, so a learner needing accountable expert correction for an exam, professional task or recurring pronunciation issue should compare tutoring instead.

Choose Duolingo for breadth and low-friction repetition

Duolingo's broad free catalogue and bite-sized sequence can reduce the effort required to begin each day. It is especially defensible when the learner is testing a language, returning after a break or needs an obvious structured anchor before adding specialist practice.

A streak shows that the app was opened, not that listening, interaction, speaking and writing advanced equally. Pair the lesson path with one small unprompted task and judge whether reliance on hints falls over time.

Read CEFR and B2 claims as content scope

Busuu's published A2-to-C1 ceilings describe the extent of individual courses. Duolingo says most learners in nine major courses can access content aligned through B2. These facts help screen a shortlist, but neither is an independent assessment of the learner's ability.

Use level labels to locate suitable material, then check observable can-do tasks across the skill that matters. Completing units cannot guarantee that a learner can sustain an unscripted conversation, understand unfamiliar audio or write accurately without support.

Compare paid tiers without inventing one price

Busuu's Premium and Premium Plus scope, and Duolingo's Super and Max scope, are separate upgrade decisions. Current totals can vary by country, platform, term, promotion and account, while some higher-tier speaking or AI features have language and device restrictions.

At each live checkout, record the amount charged today, billing term, renewal amount, refund or trial boundary and cancellation channel. Then name the specific paid feature that removes a recurring obstacle in the free workflow.

• Busuu: verify whether the desired Premium Plus feature supports your language and device
• Duolingo: verify whether the desired Max feature supports your language and device
• Both: compare total invoices rather than monthly-equivalent marketing
• Both: preserve the cancellation route shown by the original purchase channel

Run a correction-and-transfer test

Study the same topic for a week in each available free path. After every session, produce a short message or spoken retell without prompts; where Busuu community correction is available, record whether the response is useful and arrives in time for the next attempt.

Choose Busuu when its route and correction loop produce clearer revisions. Choose Duolingo when its free sequence creates more consistent retrieval with less setup. Choose neither if the real task still requires natural media volume, scheduled expert correction or live unpredictable turns.

If sustained authentic content is the missing task

Do not treat another course upgrade as a substitute for a different learning activity. Evaluate supported input separately, with the exact language and difficulty in view.

• Compare support for understandable reading and listening