You can take a picture with two iOS devices which have Cheeez. One as a camera and one as a remote.
When you take a group picture,
a person who take a picture can be in a photo without rushing into the group after setting timer.
How To Use
Features
Supported Devices
iPhone : iPhone4s and later
iPad : New iPad and later
iPod : iPod Touch 5th Gen. and later
iOS : iOS6 and above