Can we get a firmer resolution criteria here? For instance, this site says Bumble is nearly caught up by market share: https://www.businessofapps.com/data/dating-app-market/ (And Badoo is winning globally by users)

This one cites a survey saying Bumble is tied by percent of online daters who said they've used it: https://www.statista.com/chart/24404/most-popular-dating-apps-us/

How are we measuring "top"? I don't think Google Trends is a good way fwiw, it doesn't measure usage.

Nope, @ManifoldLove will be.

Google Trends data suggests that Tinder is still the clear leader.