Is there an iphone app that recovers deleted pictures?

Like aren't the deleted pictures from a phone saved in the "cloud" microchip on the phone's circuit board making it possible to recover them?

You do not need iPhone app to recover deleted pictures from phone. The best way is to use phone photo recovery software. A good one is asoftech photo recovery. Connect iPhone to computer, and then open "Computer", iPhone should show as a drive letter there. If not, please follow these instructions: In iTunes, right click on your iPhone and select "iPhone Options". Under the "iPhone" tab, make a tick in "Enable Disk Use". Click OK. Unplug your iPhone, then replug.

Now follow steps below
Step1: Download Asoftech photo recovery software, then install and launch it in Windows machine correctly.
Step2: Sync your iPhone with computer. Then you should see it shows as a drive letter in 'My Computer' like H:/.
Step3: Select iPhone drive letter and then click "Next", you will find all your lost files in the lists.
Step4: After the automatic scanning, it's time to finish all the steps by clicking "Recover" easily to Recover your files!
http://www.asoftech.com/articles/handphone-photo-recovery.html