PictoShare is not a social sharing tool; rather it streamlines sharing images between your device and that of another iOS device owner. It works well, finding devices with the same app on a wireless network and allowing you to share them with a couple taps onscreen, but it does little more than the already built-in PhotoStreaming or one of the many other apps that will share more than just images.
When you open PictoShare, you can choose an album and then any specific images that you want to share, and choose a device on the network to which you are connected. From there, tap the share button and your friends will receive a request to download images, and the images will be transferred. While we found the speed of transfer slower than some other alternatives, this generally all works quite well. The major drawback of PictoShare is that it only works with images, while other file sharing apps can be used for different types of documents, music files, and videos, too. This is not an issue for all users, but can mean more apps on your phone if you need an additional sharing tool later for other files.
PictoShare works as advertised, but does little beyond what the built-in tool does, and it's outpaced by other apps that handle more than one file type.