Compare software

DuolingoLingoDeer
Freemium

Free courses, with paid subscriptions including Duolingo Max and a one-week free trial.

 Freemium

Full access to all languages and features is a paid purchase, with multi-year plans…

Android, iOS, Web Android, iOS
  • Short lessons that fit into a few minutes a day
  • Habit-building features such as streaks and reminders
  • Grammar-based curriculum written by language teachers
  • Native speaker audio instead of text-to-speech
  • AI features of Max require a paid subscription
  • Game-like format is lighter than a structured course
  • Full access requires payment
  • Mobile apps only in the listed downloads
Downloadable app, Web application Downloadable app
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 1, 2026

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