When I was in college, I ran into many scenarios where I needed to transfer a file from one device to another quickly and painlessly. If both devices belonged to me, something like Dropbox did a pretty good job. If both devices were laptops or desktops, a flash drive did well enough. But I wanted a single solution that didn't require signing into a service or exchanging contact info with someone or typing in a long download link. So, I came up with Catch. Toss a file to the cloud, and catch it somewhere else. No accounts, just a 6-digit code.