One-time payment or subscription?
Is the license a one-time payment or a subscription to renew annually?
In short, it is a one-time payment, with optional yearly renewal.
When you purchase the plugin, you may use it forever, it will keep working even when the license has expired. The license grants you access to the latest version of the plugin, so when it expires you are left behind. Some licenses also come with technical support which requires the license to be active.
There are numerous reasons why you may want to keep your license active, one of which is to benefit from bug fixes and compatibility with upcoming Moodle versions. We do not recommend to upgrade a system while using outdated plugins.
We do not enforce the renewals so you can decide what to do when we email you that your license is about to expire.