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Mood Cairns vs FeelS: catalog facts
Mood Cairns	FeelS
Free Free and open source under GPL-3.0-only.	Free Free and open source under GPL-3.0-or-later.
Android	Android
Custom scales, tags, and reminder windows Charts for reviewing trends over time	Encrypted on-device check-in storage Includes a feelings wheel and history heatmap
Backup syncing is handled by another app	Android only Not intended for diagnosis or crisis support
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-or-later
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.