You can cancel a subscription anytime. No charges, no tricks.
Just log in to LASR X,
Open the settings menu (top left when in "setup mode"),
Tap on "My Account" and then
"Manage Account".
From the account management page, you can make any number of changes to your account, including suspending your LASR X plan.
If you wish to reactivate a canceled subscription, please log in and update your payment information in the same area.