The ads to earn the daily bonuses are laughable, Winning Hundreds of dollars playing solitaire etc. tells you the ads are for scam companies. Kind of sad the only advertisers interested in Sweatcoin are either scams or REALLY lame games.
I think it uses the same service that a lot of mobile apps do–the kind where the user base is primarily there for the rewards the app offers. It doesn’t even feel scammy by virtue of how totally ubiquitous these ads are even in apps that aren’t rewards-based. It just feels like business as usual, you know? It’s unfortunate, but the way that mobile apps seem to be running in general lately. (But . . . it’s still free SC, so . . . no complaints here for 30 seconds of my time.)