If you dont, you probably dont have it anyway.
I follow the minors very closely. As a Cubs fan, its the only thing that got me through 2011-2014 ;) And while it has its minor flaws, as does every app, its a great reference for minor league stats and games.
What really makes it great, especially being a free app. Is the game day, which IMHO is more valuable than the MLB Game Day, which is rather pricey, especially considering that ESPN has a comparable service for free, and Game Day itself is free outside the app. But I digress, as what makes it important is that while you dont need an app to check in on your favorite big league teams game, you do for minor leagues. So theres that.
The only thing preventing me from giving it 5 stars is that it doesnt include the DSL and VSL. I understand not having a Game Day for those, but it would be nice to have the teams included for the sake of following the players. And only hardcore followers are going to care about that, or even know that its a thing. So really, Id give it a 4.5, be thats not an option.