Humanity Unfolds
Open-source softwareSignal
Open-source messaging and calling software supported by the nonprofit Signal Foundation.
At a glance
- Origins
- Public launch · July 2014
- Category
- Open-source software · private messaging
Founders in the archive
Support
Supported by Signal Foundation
Signal is supported by its nonprofit foundation through donations and initial loan support.
View project details & sourcesOrigins & connections
Released for iPhone by Open Whisper Systems in 2014, building on earlier Android privacy tools. The separate Signal Foundation was announced in 2018.