Children's eyes are more sensitive to bright screens. NItMeter gives parents real data — not guesswork — to protect their family's vision.
Start 7-Day Free TrialKids don't complain about brightness — but their eyes pay the price.
Children crank brightness to max for games and videos. They won't tell you it's uncomfortable — they just squint, rub their eyes, or get headaches.
Software filters reduce blue light but don't lower actual nit levels. A screen can look warm and still blast 400+ nits into young eyes.
iPad, phone, laptop, Switch — each device has different max brightness. Tracking what's safe across all of them is nearly impossible without measurements.
Pediatricians recommend limiting screen time, but brightness guidelines are vague. Parents need concrete numbers to make informed decisions.
Point, measure, protect. No technical expertise needed.
Point your phone camera at any screen and get an immediate nit reading. Know exactly how bright your child's device is — in seconds.
Get real-time audio feedback as you adjust brightness. Lower the screen until it's in the safe zone — no need to stare at numbers.
See if the screen has uneven brightness that could cause extra eye strain. Map the entire display to find hot spots.
Measure all family devices and see which ones run too bright. Set brightness limits based on data, not arguments.
All plans include every feature. No tiers, no upsells.
Instant brightness check
Real-time audio guidance
Full-screen uniformity map
Side-by-side safety check