Recs.
Updated
Specs
Pros
Pro Generous free plan
The free plan allows you to log 10 million events per month. There are also 2 paid plans - Business and Enterprise. Business costs $995 and allows for up to 100M events per month while Enterprise has the price is negotiated on a case by case basis and supports an unlimited number of events.
Pro Event Flows visualize popular user paths
Event Flows, an Enterprise level feature, shows a branching user-action path from or towards a certain page/action.
For example, it could show most popular actions performed after landing on a product page or the most popular path towards clicking the buy button.
Compared to funnels, that allow you to track if users follows a predetermined path and where they drop off, Event Flows show what users choose to do instead. And while it's possible to create a funnel for each branching path, that involves a lot of time and some guesswork which is not present in Event Flows.
Additionally, it's possible to integrate Amplitude with Mode to create a User Paths report. It's similar to the Event Flow, but visualized differently.