Lux Meter! app for iPhone and iPad

4.4 ( 1744 ratings )

Utilities Entertainment
Developer: Advance, K.K.

Free

Current version: 1.0.3, last update: 7 years ago
First release : 12 May 2015
App size: 25.05 Mb

Indicate ambient brightness.

The higher brightness value, the faster a fan to rotate.

To calibrate, tap on the right top arrows. Right after enabling Auto-Brightness control, the value shall be approx.400 at a family living room.

Accuracy of a light sensor may vary between different devices. The brightness value is indicative.

Note: Respecting iOS API specification, this app refer a brightness of a display backlight to determine the ambient brightness. Thus, Auto-Brightness control needs to be enabled from iOS Settings.