TimeWarp - Then & Now app for iPhone and iPad

Create amazingly aligned before & after image animations. TimeWarp makes it easy to capture an after image from the exact same position as your before image by providing an overlay of the before image in the camera view finder. Once captured, you can further refine your alignment using the intuitive alignment and cropping tools. Then generate videos with customized transitions such as dissolve, swipe, spread, and cut. You can also apply color filters to your images separately.

For users in Seattle, Washington, the app comes preloaded with a large number of public historic photos that you can use to make your own time warp videos of Seattle.