Best camera app!

I was looking for aN app to let me control ISO, WB,easily. I gave up as I was told that Apple wont allow this. So I never imagine I can control ISO, shutter speed, white balance and FOC, and so easily, even when I am shooting video! It works great on 6 and 6S. Will try on 5S and iPad. Highly recommend it!

RoyGao2001 about NightCap Camera