Stoping your instance¶
You can temporally stop the instance anytime you are not using it to save money. You won't be charged any AMI fees while the instance is not running.
Terminating your subscription¶
You can terminate your subscription by simply terminating the EC2 instance. You will no longer be charged the AMI fee until you start it again.
You can also manage you AWS subscriptions from this page: Subcriptions - if you wish to unsubscribe.