Your subscription account is for you and your household family members. 
Should you change your Plan in the future, you will need to cancel the Plan you no longer require. It is an easy process to do this yourself in your Account Subscription area. 

Safety Message: Because the device only reads and delivers incredibly gentle, low subtle frequencies (similar to everyday consumer electronics), it is completely safe. However, out of an abundance of caution, it is not suitable for clients who are pregnant or who have active electrical medical implants (like pacemakers).