Tinder (Android, iOS) blazed the trail, set by Grindr, toward a new generation of swipe and scroll dating apps for the mobile set. In theory, you're not supposed to make shallow, snap judgments about potential partners, but Tinder encourages you to do just that. You create a simple profile with a handful of photos and a few sentences about yourself, then throw yourself at the Internet's mercy. The app displays singles in your area. If you like one, swipe the photo to the right; otherwise, swipe to the left. If you and a match swipe right on each other, then you can send messages and set something up. New features include GIF messaging, uploading profile photos from your phone, and the ability to 'like' chat messages.