Record and publish your own microcasts, play as an architect and building manager, and have your illusions about the state of the world set right in this week’s app roundup.

After announcing the new iPhone 5s and iPhone 5c at an event on its Cupertino campus on Tuesday, Apple released its first ads for both devices. One of them — the iPhone 5c one — was shown during the keynote, but the two iPhone 5s clips, which show off its fingerprint sensor and improved camera, were not.

But don’t worry, Apple’s uploaded all three to YouTube, so you can enjoy them when you want, as much as you want, in high definition.