A clean flashlight with an extra bright display and customizable stroboscope. If turned on via the app (not widget), it will prevent the device from falling asleep.

Comes with a 1x1 widget with customizable color.

Contains no ads or unnecessary permissions. It is fully opensource, provides customizable colors.

This app is just one piece of a bigger series of apps. You can find the rest of them at www.simplemobiletools.com
From version Simple Flashlight 3.2.1:
Added a toggle for forcing portrait mode, enabled by default
All versions
April 15, 2018