Buying & using skins should work fine

Mobile doesn't have access to dashes or abilities though, so it's generally not recommended to play the game on mobile

Ok is there a way to contact the owner of BFS?

Sorry for the late reply (again), but you could contact him in the discord server (don't ping him though). You could also alternatively use the group wall for SG or BFS - he reads them every so often. You can also use Roblox messages, which I think is your best bet, it might require you to follow him though