Not bad-shouldn't have to pay for updated versions
This app is not bad-at the very least you can determine the best statistical calculation for you data or the correct one to use. However, I noticed there is now a separate app for SPSS 22 ( and now we are on v23) and it's another $1.99. Instead of making users buy updated apps to reflect updated SPSS versions, they should update the original app. It only makes sense and I am sure then you would be able to spread by word of mouth the utility of this app and thus more people would purchase it.