Our memberships are one-time billing, there's no automatic recurring payment. You can renew when you want to update your plugin for new feature or get access to the support and extension new versions.
After your membership expiration you'll be able to use the plugin with NO restrictions, there's no licence automatic control.

Why is that?

One of the main time consuming tasks are:

• Maintaining the plugin features over time, compatible with WordPress new versions
• Maintain the compatibility with 3rd party plugins
• The personal support ticket

That's why our membership prices have a duration (access to new versions and support). Note that we applied an automatic 20% OFF on membership renew.