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FeelS vs Mood Cairns: catalog facts
FeelS	Mood Cairns
Free Free and open source under GPL-3.0-or-later.	Free Free and open source under GPL-3.0-only.
Android	Android
Encrypted on-device check-in storage Includes a feelings wheel and history heatmap	Custom scales, tags, and reminder windows Charts for reviewing trends over time
Android only Not intended for diagnosis or crisis support	Backup syncing is handled by another app
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-only
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

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