Installation
Install OpenBubbles on Windows/Android from the links bellow, once installed you will need a hardware code from an Apple device to continue with setup. There are currently no official clients for Linux and the web.
Google Play
Minimum OS Version - Android 7
https://play.google.com/store/apps/details?id=com.openbubbles.messaging
Microsoft Store
https://apps.microsoft.com/detail/9pjmsnsqd0fv?gl=US&hl=en-US