Update: As has been brought to our attention, there are other apps that do this, like Screen Filter and Lux.

When you're scrolling through a feed reader or Reddit in the wee hours of the morning on an Android phone or tablet, sometimes even the lowest of brightness settings can seem a bit too luminous.

Now, there's an app that, quite simply, allows you to plumb the depths of darkness that you had only dreamed of before.

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