Was designed to run on anything relatively modern that can do 3d accelerated webgl.

Should work on phones, tablets, and others.

What're your specs?

Works well on my wee i5 laptop, and certainly a LOT better than ye olde NASA World Wind with all the satellite plugins added on, which regularly crashed my machine when I used to play with it back in 2005 or so!

What GFX card do you have?

It was running nice and smooth for me on the following system

Linux

Brave browser

GTX 1070 (mobile version)

i7-8700K CPU

16GB RAM

Runs fine on my iPhone