The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Delve Logic:
Picatcho is a slide-to-share application for sharing photos over bluetooth or wi-fi.It gives you a nice way to slide photos out of the screen of one device and then appear on the other device. The portion of the photo sent out of the screen appears exactly on the screen of other device.So you are actually catching a pic from one device to other,that is why name Pic - catch - o.Seven simple steps to transfer photos1.Click Connect button to connect to a partner.2.Once both devices are connected,touch on "Pick Image"button.3.The one who picks an image becomes the sender.4.Sender has to slide the image out of the screen towards left.5.Image portion out of the screen appears on the other device.6.Slide completely to transfer the whole Image.7.Image is stored in photo albums of the receiver's device.