Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.
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At Open Whisper Systems, we often get emails from people who’d like to donate money to the project. For an OSS project, particularly one that aspires to a collective sense of ownership, handling donations is not always entirely straightforward. The fundamental contradiction is that while donatio...
Signal Protocol is a modern, open source, strong encryption protocol for asynchronous messaging systems. We use Signal Protocol as the foundation for our own private messaging app, Signal, but also make Signal Protocol libraries available for other applications to use. Our Signal Protocol librar...
As of our latest Android release, Signal builds are reproducible. Reproducible builds help to verify that the source code in our GitHub repository is the exact source code used to build the compiled Signal APK being distributed through Google Play.