Libre Light Sensor

Measure Light in Lux

Only for iPhone

Free

iPhone

Measure light levels in any environment. Libre Light Sensor leverages your iPhone's camera to calculate luminosity as measured in Lux. This allows you to determine how much light exposure your eyes are receiving when you wake up, during the day, and before bed in order to optimize your sleep quality.

  • This app has not received enough ratings or reviews to display an overview.

Upon clicking the information icon to view Lux reference measurements, you may be prompted to rate the app no more than three times in a calendar year. Thanks for using Libre Light Sensor, if you enjoy it (or not), please leave a review.

The developer, John Harrington, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    • Seller
      • John Harrington
    • Size
      • 1.3 MB
    • Category
      • Utilities
    • Compatibility
      Requires iOS 16.0 or later.
      • iPhone
        Requires iOS 16.0 or later.
      • Apple Vision
        Requires visionOS 1.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © Copyright (c) 2022 John Harrington