Mobile App Camera Design Tool

Dear all,

any one can help me by tools installed on IOS that help me in design surveillance like FOV, lens calc or any application like that something like ip camera design calc on windows

Hazem, we are currently working on making our Camera Calculator into a mobile app.

I know there are a handful of mobile apps for lens calculators out there, I am not sure how good they are.

Thanks can you name any one of them until you launch your app