Please go to MoneyWiz Settings > scroll to the very bottom. The version number is printed there.
MoneyWiz 3 and older
On the iPad, iPhone, Android and Windows you can check the version number of MoneyWiz by going to Settings > About & Help > Look at the number just below the last button (Online help).
On a Mac, go to MoneyWiz in the menu bar, at the top, and then select About MoneyWiz. You will see the version number just below the MoneyWiz logo.