How to install apps without updating iOS - iPad 1 iPhone 4 iPhone 3GS iPhone 3G iPod touch

App requires higher iOS in order to install, this is how to get around that problem and download Facebook and other apps without a problem. No need to update iOS4 iOS 5 iOS 6 iOS 7 iOS 8 iOS 9 \r
4gb 8gb 16gb 32gb 64gb 128gb \r
Cant download app form app store because I dont have iOS 7 ? dont worry , this is how you do it . Follow tutorial \r
iPad 2