Compare software

Day OneSimpleDay
Freemium

Free to use, with extra features in the paid Gold plan.

 Free

Free and open source under the GPL-3.0 license.

Windows, macOS, Android, iOS, Web, Browser extension Android
  • Entries can include photos, video, audio and drawings
  • End-to-end encrypted sync and data export
  • Markdown entries
  • No account needed
  • Some features require the paid Gold plan
  • Closed source
  • Limited to one entry per day by design
  • Young project with a single developer
Downloadable app, Web application, Browser extension Downloadable app
Closed source Open source
License not stated License: GPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 24, 2026

Checked October 2, 2026

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