Well, it’s one way to make your life more colorful. Geló, a photo app for the iPhone, gives users an easy way to add the effect of bright, vibrant gels to your digital snapshots to give them a little extra pop. The app itself is a little complicated to get into, but users can make some pretty cool effects once they puzzle through the controls. It’s certainly a great app for those who like to play with color, but not an essential photo tool for your editing arsenal. And don’t worry: If you get carried away, you can revert your photo to its original state. 99 cents, for iOS devices.