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BurnPony vs OTS: catalog facts
BurnPony	OTS
Free Free on the App Store, Google Play and F-Droid; the Android app is open source under…	Free Free and open source under the Apache-2.0 licence.
Android, iOS, Web	Web, Self-hosted
Encryption happens on the device before upload Recipient needs only a browser, no app or account	Encryption happens in the browser, so the server never sees plain text Secrets are deleted after the first read
Depends on the developer's server to hold and deliver notes Anyone who gets the full link can read the note	In-memory storage loses secrets on restart Anyone who gets the link first can read the secret
Downloadable app, Web application	Self-hosted
Open source	Open source
License: Apache-2.0	License: Apache-2.0
No account needed	No account needed
Needs internet	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.