When you order one of our plugins, you get the plugin – forever for that single price.
When a new Major release of the plugin comes out, you need to purchase it again. Typically there will be several free updates and it will always be more than a year between major releases – so the price you see is forever, unless you want to buy an upgrade, when they become available. You are under no obligation to upgrade ever, unless something changes in WordPress or WooCommerce and we are forced to issue a major upgrade to keep things working.