How to scan
What a scan measures, what to do if a reading looks wrong, and how accurate a phone is.
What exactly does a scan measure?
Room brightness (LUX) and light colour (CCT) come from the phone's ambient-light sensor together with the rear camera, over about three seconds. Reading distance (PDR) is estimated by the front camera from the face, without recording a preview. Natural light (SLD) comes from the daylight available at your location, not from the camera.
The reading looks wrong. What should I do?
First check nothing is over the sensor — a case, a finger or a screen protector across the top of the phone will read low — and that the phone is on the desk facing the same way the reader does, not pointed at a lamp. If it is still off, Settings → Calibration corrects it for your device, and support@caliberix.com will look at it with you if that does not.
How accurate is a phone measurement?
Accurate enough to tell a well-lit desk from a poorly lit one, and to track the same desk over time — which is what the score is for. It is not a laboratory instrument, and phone sensors vary between models. If you have access to a real light meter, Settings → Calibration lets you match the app to it once; otherwise the slider on that screen nudges the reading to what you can see.
More StudyLight help: Getting started · The Study Score and its bands · Free and Pro · Subscription, cancelling and refunds · Privacy: what stays on your phone · Delete your data · Permissions: camera, location, notifications · Troubleshooting · Contact support · What StudyLight can't do
Contact
Still need help?
Email support@caliberix.com. We reply to every message.
Shown on StudyLight v34. The same answers are in the app under Settings → Help Center.