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Speak vs Tandem: catalog facts
Speak	Tandem
Freemium Free to start, with paid access to the full curriculum.	Freemium Free to download and use, with optional paid features.
Android, iOS	Android, iOS
Spoken practice with an AI tutor instead of a live teacher Lessons built around phrases people actually use	Practice with real native speakers in many language combinations Text, voice note, audio and video call options
Limited set of languages Proprietary app with a paid tier for full access	Requires an account and an application review before use Progress depends on finding reliable partners rather than a set curriculum
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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