Compare software

ImapNotes3Google Keep
Free

Free and open source under the GPL-3.0.

 Free

Free to use with a Google account.

Android Web
  • Syncs through any IMAP mailbox you already have
  • Notes stored as standard HTML emails
  • Quick capture of notes and checklists
  • Reminders built in
  • Needs an email account with IMAP access
  • Android only
  • Requires a Google account
  • Notes are stored on Google's servers
Downloadable app Web application, Hosted service
Open source Closed source
License: GPL-3.0 License not stated
Account needed Account needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 23, 2026

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