> If buying it then means the transaction between us is over It should be, but iOS sometimes requires code upgrades which makes me wonder how long a person sup

> If buying it then means the transaction between us is over It should be, but iOS sometimes requires code upgrades which makes me wonder how long a person supports a version of a program on iOS. The whole length of support versus new version is problematic. I would assume version fixes for a number of years. Should be ok for an educational program since the useful lifetime is limited by the nature of the lesson.