Power Toggles - An advanced power control widget for both your homescreen and notification panel. Free without ads.
Flashlight - Control your Mac with a keystroke.
Quick Settings - Your dedicated Android expert remotely or on-site. Technical advisory, creating and reviewing software architecture, Android development, code reviews and trainings.
Tiny Flashlight + LED - Tiny Flashlight + LED is free to use application that can be used anywhere else, having nicely built-in functionality.
Do Not Disturb Toggle - Do Not Disturb Toggle allows you to switch on and off your phone to automatically mute incoming calls and notifications.
Screen Torch Advanced 2 - "Screen Torch Advanced 2", is an handy torch program. It only uses devices' backlight.