You’ve been warned: You’ll soon see images like the ones in this post — part moving, part still — everywhere. Animated GIFs are making a comeback, and Echograph, a new iPad app, is taking them to the next level. Remember how the newspaper photos in the Harry Potter movies came alive? That’s what this app brings to the Muggle world, for $2.99.
Here’s how it works: You shoot a video, select a five-second clip, and choose one still as the main frame. Next, use your finger to erase part of the image. That portion of the frozen image is replaced by video playing on an endless loop. The result? Hybrid images that keep your eye guessing.