It's way too bright. I turn my phone brightness all the way down at night. I like to read in bed but I don't want to disturb my husband. So, I turn down the brightness in the kindle app, but it's still way too bright. Even with the black page/white writing. Why would you do that? It's significantly brighter than the lowest setting of my phone brightness when not using the app. I'll happily change my review if this issue gets fixed. I love the app aside from that.