Need to Reinstall an App named KitCam

I am going to have to uninstall my software on my IPHONE which means I will
probably lose this APP KitCam when the Apple Store Re installs the software back into
my cell, this App is no longer available and might be wiped out when my cell is reset today (09-12-13). I LOVE this KitCam APP and since it is not available anymore how will I
be able to get The App back on my cell??? Next question, How can I install
KitCam on my desktop at home and My IPAD??? Can the App or Link be sent to my email address
so that I can reinstall it back into my cell and home desktop and IPAD??? I have
Windows Desktop, IPHONE and IPAD, please help me so that I do not lose this Great
KitCam App you all created. My name is Dan