Working with two developers and a marketer, our team of four developed this iOS app as a passion project. The app allows you to challenge your friends, groups, or even businesses to anything you can think of. You can raise the stakes by placing monetary bets that upon completion (or failure) of the bet will be sent to the charity of your choice. When you’re finished, show off your attempt with Zap’s user-friendly timeline, and push the story through to your other social media platforms.