What y'all think about soloyal?

Hey! I was wondering what y'all think about the app soloyal. It seems to be an app for joining and tracking a bunch of loyalty programs, including ones that you are not in. It might have other features too. The website is soloyal dot co (not dot com).

To me it looks pretty useful, but I'm leaning towards not getting it because a) I don't use that many loyalty programs and b) I'm a little nervous about apps that track my credit card.

Maybe b) is silly since so many things are already tracking my card. If I ended up using more loyalty programs, I might check it out.