Apple has just posted a new video to its YouTube channel titled “Making a difference. One app at a time.” The nine minute video highlights ways that developer’s apps change people’s lives.

Featured apps in the video include Skyscape Medical Resources, Galileo, Cherokee Language, and Proloquo2Go.

Coming hot off the heels of Apple’s WWDC keynote on Monday, the video is a collection of stories from individuals who’s lives have been touched thanks to some of the remarkable apps developers have created for the iOS App Store.

At Monday’s keynote, Tim Cook also addressed his appreciation for developers, citing that Apple has paid developers over 10 billion dollars.

Apple today also posted its full iOS 7 promotional video to its YouTube channel (below).

Each iOS app offers remarkable — and often delightful — possibilities. But the most powerful iOS apps ever are ones that change people’s lives in ways they never imagined.

(Thanks, Riley)