In FAQ I have seen this:
Am I allowed to sell or share my subscription?
No. Subscriptions are tied to a specific computer and can be used only by the owner of the account. We investigate abuse in this manner and ban the account without any notice.
If I change any component of my computer, will I lose my subscription?
Can I have the hack on two different computers?
I don't know whether to buy the lifetime subscription for this reason
if the device is yours there isn't any problem, so yes you can use it on two computers, however everytime you switch devices you will need to request a HWID reset.