Is there upgrade pricing for Studies? (macOS)
If you download Studies from http://studiesapp.com, you can use the coupon code MCUPGRADE when purchasing to get upgrade pricing (30% off).
Unfortunately, due to restrictions placed by Apple, we cannot off upgrade pricing in the Mac App Store version of Studies.
The iOS version of Studies is free.
Studies for macOS and iOS
Mental Case for Mac OS X
Mental Case for iOS