18
Yourphone alternatives?
(slrpnk.net)
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
Matrix space | forum | IRC
Pushbullet. Even though it's always been problematic for me, it's worked fine for most people I know.
Edit: Nevermind, didn't notice the community this is in.