I am sure the app must be technically good given the deep pockets they have to invest and build it out. I’d respect the scale they have achieved.
As a user, you must make sure that you get sound advice from an unbiased advisor. Transactions are a given, what you must look for is strong advice. Go for someone with that advisory strength and track record. It pays to pay for advice when it comes to money; any platform that offers everything free may not work in the long run.