Hi guys, Tornado Vision is my app so let me take a moment to explain how the app works.
There are three things here:
1) The mode when you open the app is a photo contrast filter to help see rain-wrapped or other low contrast tornadoes. Basically, I took a hundred different photos where tornadoes were really hard to see without contrasting and created filters around the curves.
2) The night mode does a couple things, one it changes the shutter, ISO because normal iOS or Android devices are terrible to see anything at all. Secondly, it acts as a quick throaway lightning trigger - you set a sensitivity level and it will immediatley freeze capture the frame, again so you can see what is actually going on in the storm.
3) The by far coolest feature is simply looking at any storm with the phone and getting an augmented reality display. This includes visually seeing storm reports, and being able to click on the top left figures to get a complete storm and environmental display. I've attached some example pics.
These days I think most people use it as a photo filter app but the real magic is in the augmented reality.
I've attached an image of one of the filters on the 2016 Big Springs, TX Tornado - which was rain-wrapped/poorly contrasted and could just barely visually see it.