Don't download – Camera Master - Master Your DSLR - For Nikon, Canon, Sony, LUMIX & GoPro Review

It costs $25 for in app purchase to even learn or read anything. They link to the purchase apps through the store and I am assuming so they get a cut. Worthless crap
Review by wandering way on Camera Master - Master Your DSLR - For Nikon, Canon, Sony, LUMIX & GoPro.