Slide up & down on your phone to adjust brightness.

Yes, I KNOW some of you have heard this before, but it’s still a good tip! If you whip open your camera only to discover that your subject looks decidedly too dark or too light, all you have to do is tap and drag up or down. Up to lighten your image. Down to darken. Here are two extreme examples:

 
lighten.jpg
darken.jpg