I came up with the idea for GLO when I was out on a run late at night. I was looking at my phone and when I looked back up, I had momentary night blindness, forcing me to stop and readjust my pupils. I remembered my headlamp using a red light to allow me to read a map at night without bothering my eyes, so I set out to see what there was in terms of apps like this out there.

There where definitely a few, so-called Nightvision apps, but all they did was layer an obnoxious green or red lyer over your screen.