The Study Score and its bands
What the Study Score is, what POOR, MODERATE, GOOD and OPTIMAL mean, how streaks work, why the evening score differs, and which bulb to buy.
What is the Study Score (SES)?
One number from 0 to 100 for how well the space is lit for study right now — higher is better. It combines four things the scan measures: room brightness (LUX), light colour (CCT), reading distance (PDR) and natural light (SLD). Brightness counts most and daylight least, so a well-lit desk scores well even on a day spent indoors.
What do POOR, MODERATE, GOOD and OPTIMAL mean?
They are the four bands of the Study Score: POOR is 0–39, MODERATE 40–59, GOOD 60–79 and OPTIMAL 80–100. The band is what the colour on the gauge is showing, and it is the same on every screen — a GOOD day on your streak is a scan that reached 60.
How do streaks and freezes work?
A streak day is a day with at least one scan scoring 60 or more (GOOD or OPTIMAL). A scan below 60 does not count, so on an evening the streak is at risk the reminder stays until a scan reaches 60. Every 3 days in a row earns a freeze, and you can hold one at a time: it covers a single missed day, used automatically when you next reach 60.
What do Safe, Caution and Alert mean on each tile?
Each measurement gets its own verdict, separate from the overall score. Safe means that factor is inside the comfortable range for study. Caution means it is drifting out and is costing you points. Alert means it is far enough out to be the main thing worth fixing. A scan can hold a good overall score and still show one Alert — that tile is where to start.
Why did my score change when nothing in the room changed?
The comfortable range tightens in the evening. From 5 PM until 6 AM the same light is judged against evening targets — warmer colour and a lower brightness ceiling — because evening study lighting is usually warmer and dimmer than daytime. The same light at the desk can be Safe at 3 PM and Caution at 7 PM, and that is the app working, not drifting.
Which bulb should I buy?
Look at the colour name on the box. "Warm White" is yellowish (about 2700–3000 K), "Natural White" is in between (about 4000 K), and "Cool Day Light" is bluish-white (about 6500 K). For a study desk, Natural White suits the day and Warm White the evening. For brightness, an LED's watts are a rough guide: about 9 W gives around 800 lumens, enough for a desk lamp, and 15–18 W suits a room's main light. Bulbs differ, so after changing one, scan again — the app is the meter.
More StudyLight help: Getting started · How to scan · 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
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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.