In the past I wanted to use this high quality encrypted communication tool on my android phone running Lineage OS (successor of Cyanogen mod) without Google Apps, but it was not possible because of a dependency to "Google play services". This dependancy was removed in march 2017.<p>What is more an official APK can now be downloaded from Open Whisper Systems servers.<p>I submitted this because I discovered this by chance only today and I would have installed Signal sooner if I had known.