Compare software

Busuu vs Duolingo: catalog facts
Busuu	Duolingo
Freemium Free to start, with a paid subscription for full access.	Freemium Free courses, with paid subscriptions including Duolingo Max and a one-week free trial.
Android, iOS, Web	Android, iOS, Web
Feedback from a community of native speakers Pronunciation feedback in speaking practice	Short lessons that fit into a few minutes a day Habit-building features such as streaks and reminders
Full course access requires payment Proprietary service that needs an account	AI features of Max require a paid subscription Game-like format is lighter than a structured course
Downloadable app, Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.