Here’s a great idea, featuring great UX details.

People loved the photo backup/sharing startup Everpix, but it keeled over after netting just ~6,000 paying customers. (That’s hardly surprising in a world where backup & sharing come free with every phone.) It started to popularize a neat feature called Flashback, one that showed photos from your archive taken exactly one year ago.

Now I’ve found Timehop, a free iOS app that finds the images you shared across various social networks, then gives you snapshots from one, two, and more years ago. The daily push notification it sends provides a little treat I’ve come to anticipate.

What sets the app apart, though, is the delight its creators take in otherwise-mundane UI details. The spinning loading indicator is a Back To The Future-style flux capacitor:

(In the app itself it animates.) They’ve also enjoyed making their mascot Abe paw at the pull-to-refresh indicator, seen here captured by Beautiful Pixels:

Well played, guys. Can’t wait to see what you cook up next.

[YouTube]