App to turn on both camera LEDs?

I never use the selfie cameras on my phones, and last night I was suprised to accidentally discover that my current phone (moto g6) has a selfie LED light (something I don’t think any of my other phones have ever had.) now I’d like to find a way to turn both front and back LEDs on at once in flashlight mode, just because. Anyone know if there is an app for that?