title: Comparing strings with the format "2.0.1", "2.0.09"
body: <p>I need to get the user's app version number and compare it with the current app version on my server. If the user's app version is lower, then he will get a pop-up to update his app. While doing this, I need to compare the version of the app with the versions that are available. How can I compare the strings which are in the format <code>"2.0.1"</code> and <code>"2.0.09"</code> and get the highest one, in Objective-C?</p>