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Open-source notices

Last updated: 29 September 2026

Gloss is built with the help of open-source software. This page lists the third-party components we include in the macOS app, with their licences and copyright notices. We are grateful to the people who write and maintain them.

About these notices

The Gloss macOS app includes the third-party open-source software listed below. Each component is provided under its own licence, which continues to apply to that component. This list reflects Gloss 2.1, and we will update it as the components we ship change.

Sparkle

Gloss uses Sparkle to deliver automatic app updates.

Copyright

  • © 2006–2013 Andy Matuschak
  • © 2009–2013 Elgato Systems GmbH
  • © 2011–2014 Kornel Lesiński
  • © 2015–2017 Mayur Pawashe
  • © 2014 C. W. Betts
  • © 2014 Petroules Corporation
  • © 2014 Big Nerd Ranch

Sparkle is released under the MIT Licence, which grants permission to use, copy, modify, merge, publish and distribute the software, and provides it “as is” without warranty. Sparkle also bundles a few components under other permissive licences: bsdiff(© 2003–2005 Colin Percival, BSD 2-Clause), sais-lite(© 2008–2010 Yuta Mori, MIT), a portable Ed25519 implementation (© 2015 Orson Peters, zlib licence) and signature-verification code (© 2011 Mark Hamlin, BSD 2-Clause). The full licence contains the complete text and conditions.

Questions

Spotted something missing, or want more detail about the open-source software we use? Email legal@trygloss.tech.