Notifications+ Cost

I was wondering what happens after the 14 day trial of the https://notificationsplus.ps.ringcentral.com/ app and whether or not my RingCentral subscription includes this extension. All I am using it for is to send a webhook for inbound calls to our sales extension so I can trigger a sound to be made for the office to hear over a loud speaker. If it costs extra, I would like to know hoe much, but the AI Chat Bots are entirely useless. They have never heard of this and claim to have no idea what I am talking about.