Mixpanel
Pay per use
Event analytics billed per event above 1M a month.
$0.28 per 1,000 eventss
First 1M events free every month.
Replaces Fathom Analytics, Hotjar (Contentsquare), Pirsch Analytics
You would pay $0.00 a month, against $20.00 for Self-serve (100k pageviews).