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Secure QR ShareBurnPony
Free

Free and open source under the MIT license.

 Free

Free on the App Store, Google Play and F-Droid; the Android app is open source under…

Android Android, iOS, Web
  • AES-256 encryption protected by a shared PIN
  • No cloud service or network transfer involved
  • Encryption happens on the device before upload
  • Recipient needs only a browser, no app or account
  • Both people must be physically close to scan the code
  • Small project with few contributors
  • Depends on the developer's server to hold and deliver notes
  • Anyone who gets the full link can read the note
Downloadable app Downloadable app, Web application
Open source Open source
License: MIT License: Apache-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Needs internet

Checked October 2, 2026

Checked October 2, 2026

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