iOS 8 has been touted as Apple's biggest overhaul to the operating system since its launch.
However, unlike iOS 7, which had a significantly different look and feel than its predecessors, many of iOS 8's biggest changes are not immediately noticeable after downloading the update.
[seealso slug= "ios-8-review/"]
That's because some of the most radical differences-- like third-party keyboards, extensions and other features designed to give third-party developers more flexibility -- are reliant on individual developers to take advantage of the features and optimize each app for the new tools.
Though developers have only just begun to roll out iOS 8-optimized updates to the App Store, here's a first look at some of the apps that are putting the newest version of iOS to good use. But before you go ahead and download the new software, make sure to back everything up first.
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BONUS: Apple iPhone iOS 8 Review