How to check which iOS version your device is running

We can check the UIDevice’s property systemVersion for this. Here’s a quick snippet that checks this, and conveniently checks the first number in the returned value. This should work until iOS 9…

NSArray *versionArray = [[[UIDevice currentDevice] systemVersion] componentsSeparatedByString:@"."];
    
if ([[versionArray objectAtIndex:0] intValue] >= 7) {
        
    // do this if we're runnign iOS 7 or higher
    return @"iOS 7 or higher";
        
} else {
        
    // do this if we're running iOS 6 or below     
    return @"iOS 6 or lower";
}

I’ve created a demo project for this code on GitHub:
https://github.com/versluis/iOS-Checkr

Inspired by this thread:
http://stackoverflow.com/questions/12561599/how-to-check-ios-version-is-ios-6





One thought on “How to check which iOS version your device is running

  1. According to Apple’s iOS 7 Transitioning Guide, the following will check the iOS version via the Foundation framework. This code should be in application:didFinishLaunchingWithOptions (App Delegate):

    if (floor(NSFoundationVersionNumber) <- NSFoundationVersionNumber_iOS_6_1) {
        // Load resources for iOS 6
    } else {
        // Load recources for iOS 7
    }
    

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