Is there any way to tell before you buy an app? I just bought one yesterday, actually paid money for it, and it gave me that warning. While six months is a long time, if I buy it the day before the cutoff, I'd be pretty disappointed when I lose access 24 hours later.

I also wish there was a way to see which apps support retina displays before you buy them, I've been tricked a few times.

Ask the developer if they ware going to fix them. If not, get a refund. You can do it through your iTunes account or directly with

https://reportaproblem.apple.com

Say product didn't work as advertised.

> Is there any way to tell before you buy an app?

I believe that most apps built to support "iOS 8 or later" (this is shown in the app's Information section) are 64-bit.

> While six months is a long time, if I buy it the day before the cutoff, I'd be pretty disappointed when I lose access 24 hours later.

I just looked it up, and Apple has been asking developers to build against the iOS 8 SDK for 2 years now:

http://appleinsider.com/articles/15/01/19/apple-once-again-a...

Ah so that's what that warning is about.