Beamer bills per MAU - so traffic, not usage, sets your price
A Beamer MAU is anyone who loads a page where the widget sits - they never have to open it. If 50,000 people visit but only 2,000 read your changelog, you still pay for 50,000. A good launch doubles your traffic and your bill. Gleap is $149/mo flat, no matter how many people see your changelog.