Does it support Android/iOS platforms?

Hello,

Yes, our Avalonia controls are written in C# and purely for the Avalonia framework.  They should work anywhere that Avalonia is supported.

Some controls types are geared more for desktop usage, like our Docking/MDI product, and those won't be useful in a mobile app.  Other controls like those in Fundamentals are generally more applicable in any app context (mobile or desktop).