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Kana vs LingoDeer: catalog facts
Kana	LingoDeer
Free Free and open source under the GPL-3.0 or later licence.	Freemium Full access to all languages and features is a paid purchase, with multi-year plans…
Linux	Android, iOS
Focused on learning Japanese characters Simple desktop app	Grammar-based curriculum written by language teachers Native speaker audio instead of text-to-speech
Covers characters only, not a full language course Linux only	Full access requires payment Mobile apps only in the listed downloads
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	License not stated
No 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 October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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