Key Reusability

So, I recently bought Pyxel Edit, but I'm going to be switching PCs soon.
I also wanted to install it on a friend's computer, to show how it looks, how it works, and encourage him to buy it as well.
The only problem is, will the key usage number last? How many times can I use it?

Edit: Nevermind, I've found that I can use it on multiple computers that I own.