Lux Auto Brightness

The original custom auto brightness solution for Android.

Goto-Google paly store 

Description:
Lux isn't your ordinary brightness app. It intelligently adjusts the brightness of your display based on the environment you're in. If you step into a dimly lit room, Lux will automatically lower the brightness of your display to make it not only comfortable to read, but to also preserve battery power.

Lux is also able to adjust the screen temperature of your display automatically to make it appropriate for night usage. At sunset, you can have Lux automatically warm your display and switch to your Night profile. If you're an astronomer, you can enable astronomer mode to cut out harsh white light. If you have a root enabled phone, you may even be able to apply these enhancements at a low level with Lux's plug-in system.

Perhaps the best thing about Lux is that you can teach it how to behave. If the backlight is too bright or dim for your liking, simply open the provided Dashboard, adjust the brightness slider to the level you desire, then hold the link button. Lux will use this new 'link' as a reference in future.

Give it a go! I want you to test Lux for more than the 15 minute refund period offered by Google. I understand that some devices may not have the best quality light sensor, and that you may need more time to play around with settings. If you find that Lux doesn't suit you after the 15 minutes is up, you can request a refund within a week of purchase via e-mail - no questions asked.

FEATURES:

Stable, custom auto brightness with root plug-in support.
Use your ambient light sensor or camera(s) to read in ambient light.
Subzero brightness for night viewing.
Select between Auto, Day, Night, Car and Cinema light profiles
Automatic night mode. Change the colour temperature of your display for comfortable night time viewing.
Astronomer mode. Adds a red filter to your display to preserve the eyesight of stargazers.
Power-user settings such as choice of interpolation, filters, and linked sample editing.
Add app specific exceptions via sleep mode.
Customisable fade for backlight adjustments.
Tasker and Locale support
Battery efficient.
Backup to SD.
No ads or other nuisances.

PERMISSIONS:

TAKE PICTURES AND VIDEOS: Used to read in luma values if camera input is selected.
DRAW OVER OTHER APPS: Required for night/astro mode.
READ PHONE STATE: Required to prevent Lux from interfering with phone controls in Android 4.1.
MODIFY SYSTEM SETTINGS: Brightness is a system setting, as is toggling the default auto brightness.
RETRIEVE RUNNING APPS: Required to make the 'sleep list' functionality work, so Lux can disable itself when certain apps are in the foreground.
COARSE LOCATION: Required to automatically calculate sunrise/sunset times.

App Screenshot :

    

What's New:

Note: The Nexus 5 plugin will be coming as soon as possible. Your patience is appreciated!

v1.95
- Fix for compat issues (inc. Cover)
- Update translations

v1.93
- Remove IAB permission
- Fix rare crash

v1.92
- Kitkat subzero workaround
- Updated translations
- Updated default sleep list
- Misc. fixes

v1.86
- Manual sunrise/sunset time input
- Manual jitter control percentage
- Night mode can now be set as low as 1900K
- Japanese translation
- Display flashing/restarting fixes
- Misc. fixes

Requires Android : Varies with device

NOTE-Make sure your system meets the following minimum requirements before installation: