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Penzu vs Stoic: catalog facts
Penzu	Stoic
Free Free to start, with unlimited entries at no cost.	Free Described by the developer as free.
Android, iOS, Web	macOS, Android, iOS, Web
Unlimited entries on the free plan Encryption and per-entry or per-journal locking	Ready-made prompts make short daily entries easy Mood tracking alongside journal entries
Journals are stored on Penzu's service rather than in files you own Built for journaling, not general note-taking	Closed source AI features may not suit people who want a plain private diary
Downloadable app, Web application, Hosted service	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
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 2, 2026	Official website Full listing and sources Checked October 2, 2026

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