"SIS Night Filter" is the Screen Filter Application to darker the brightness of the screen. This is more effective than Android's built-in brightness setting.

[FEATURES]
* You can use "Preset" function with buttons.

[Free ver Limit]
* Ad is displayed. So this app is required the INTERNET ACCESS.
* You can register up to 2 preset values. (3 preset values at no-Ads version.)

Disclaimer
Please note that SISYOU.KUM shall not be responsible for any loss, damages and troubles.