Installing a pre-iOS7 app version
Some attention was given to the fact that when iOS7 came out, a possibility was offered to install versions of an app that didn't require the latest (and not-so-greatest O:-) ) version of the OS. I've been able to do just that a number of times (though I cannot remember if it concerned applications that I already had installed, or also new apps).
Now, I tried to install an app that's free for today, and that definitely existed before iOS7 came out ("Just Six"), but neither my iPhone 4s nor my 3rd gen iTouch (that can run't even run iOS6) allow me to install an older app version. Is that due to a change in Apple's policies, a choice of the app's author, or because the feature only existed for updating already installed applications?
iPhone 4S, iOS 6.1.2, 32Gb