Every plugin has a free version on WordPress.org. Pro adds saved cards, WooCommerce Subscriptions and priority support. Each Pro license covers one plugin (one gateway on one platform) on the number of sites you choose.
Single site
$79 / year
Use on 1 site
5 sites
$179 / year
Use on up to 5 sites
25 sites
$349 / year
Use on up to 25 sites
Prices are per plugin, per year. Buy from the plugin's own page.
Licensing questions
What happens if my license expires?
Your checkout keeps working. An expired license only stops updates and support; it never blocks payments.
Does it renew automatically?
Yes, yearly. You can cancel any time from your account, and the plugin stays installed and working.
Do I lose my settings when I upgrade?
No. Pro uses the same gateway and settings as the free version, so you install Pro and you're done.