Camera-based lux estimate
Use your device camera to sample light and estimate lux over a chosen duration.
Light measurement utility
Lighting Check: Measure Light Intensity with Your iPhone Camera
Lighting Check helps you estimate light levels with your iPhone or iPad camera, compare practical guidance, and keep simple on-device audit records.
Measure lux estimates, calibrate when you have a trusted meter, document sites and rooms with notes and photos, and export PDF or CSV reports when you need to share a check.
What Lighting Check does
Lighting Check measures approximate light level in lux using your device camera. It is designed to help you understand whether a space is bright enough for common settings.
Choose bundled environment guidance or create custom standards, run a measurement, review the result, save audits on your device, and export PDF or CSV reports when you need to share or archive a check.
Who is Lighting Check for?
Lighting Check is for people who want a quick, camera-based light level estimate and light documentation workflow.
- People checking room, workplace, or study lighting
- Facility and farm location checks
- People comparing spaces against practical lux guidance
- Users who want on-device history, notes, and photos
- Students learning about light levels
- iPhone and iPad users who need a simple light measurement tool
Key features
Guidance and custom standards
Compare readings against bundled environments or standards you create on device.
Calibration
Run a one-point calibration against a trusted lux meter to improve consistency on your device.
History and exports
Save sites, rooms, and audits with notes and photos, then export PDF or CSV reports.
How Lighting Check works
- Choose the environment or custom standard you want to compare against.
- Point the rear camera at the area you want to measure.
- Tap Start and hold the device steady during sampling.
- Review the estimated lux, guidance comparison, and result details.
- Save the audit, add notes or photos, and export a PDF or CSV when needed.
Useful for
Lighting Check supports practical light checks and lightweight documentation.
- Room light estimates
- Workplace and facility checks
- Farm or housing location checks
- Target lux comparison
- One-point calibration workflows
- On-device audit history
- PDF and CSV report sharing
- Learning about light intensity
Why use Lighting Check?
Lighting Check gives a quick way to estimate lighting without dedicated hardware, which can be useful for informal checks, comparisons, and simple documentation.
Camera-based readings depend on device camera quality and conditions. Newer iPhones typically provide more consistent results. Calibration can improve consistency for your device, but it does not turn the phone into laboratory equipment.
Credits, ads, and Full Access
You start with free measurement credits. When credits run out, you can watch an optional rewarded ad when one is available, or unlock Full Access with a one-time In-App Purchase for unlimited measurements while the entitlement is active.
Rewarded ads are configured as non-personalized from the publisher side. Ad availability can vary, so rewarded credits are not guaranteed. Full Access does not erase your remaining credit balance.
Frequently Asked Questions
What is Lighting Check?
Lighting Check is an iPhone and iPad app that estimates light intensity in lux using your device camera, compares practical guidance, and helps you document checks on device.
How do I measure light with Lighting Check?
Choose an environment, point the camera at the area, tap Start, and hold the device steady during the measurement.
Does Lighting Check use the rear camera?
Yes. The rear camera is used for best accuracy.
Are the readings as accurate as a professional lux meter?
No. Readings depend on your device camera and should be treated as estimates, not certified measurements. You can run a one-point calibration if you already have a trusted meter.
Can Lighting Check compare readings with standards?
Yes. It includes bundled environment guidance and lets you create custom standards on device.
Is Lighting Check free?
Yes. It is free to download with measurement credits, optional non-personalized rewarded ads for more credits, and a one-time Full Access purchase for unlimited measurements.
Does Lighting Check track me for ads?
Lighting Check is configured for non-personalized rewarded ads and does not request App Tracking Transparency. Regional advertising consent may still appear through Google’s User Messaging Platform where required. See the Privacy Policy.
Important notes
Lighting Check provides camera-based estimates and is not a replacement for calibrated professional measurement equipment.
Accuracy depends on device hardware, camera exposure, lighting conditions and how steadily the device is held.
Download Lighting Check
Lighting Check is available on the App Store for iPhone and iPad.