Honestly I'm surprised there aren't more instances of apps like this, it makes sense across a lot of problem spaces. Most users are already happy to trade their data for free stuff, why not make a competive app to get in on that data for LEO purposes? Similarly, having high quality apps produced domestically cuts down on the harvesting abilities of foreign government extensions like Tencent if you can compete across enough spaces. Most users could even stand to benefit since, in this instance, there's an incentive to focus on quality or else no one will swap over. I've got nothing against having my data harvested willingly, at that point it's just another financial instrument to me. The hardcore privacy crowd loses but isolation is the price of absolutism, the movement has had plenty of time to pivot in persuit of the mainstream.

Staying fit is part of their job, so it's not completely out of nowhere.