We offer plans like Free, Business, Premium, and Enterprise. You can opt for any of them as per your requirement. With free Plan, you can send 120 notifications a month to 2500 active subscribers. Once you reach a subscriber limit, you will need to upgrade to paid plan to keep sending web push notification. You can check our full breakdown here.
Please visit https://www.pushengage.com/pricing for more details and for enterprise pricing contact firstname.lastname@example.org.