Coming soon.

Download it here: https://delta.chat/en/
You can use it on PC and on Mobile.

Easier to use on Mobile.

You cannot easily link or sync the same account across both.
Solution? Make 2 accounts. 1 on mobile, 1 on PC. IF you need to do that.
Otherwise keeping it on one device is more than enough.

Further FAQ and instructions on the Delta Chat website! Read more there.