What is a good OBD/OBD2 scanner for an affordable price?

I am trying to be more frugal, and a big part of that is car maintenance.

I see plenty of obd scanners for your car in the $20-40 price range. Is there a particular one that is better than another or would you just buy one? I was looking at the FIXD one that has the app on your phone. It’s only $20 but I don’t wanna get ripped off. Any advice helps!