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Brightwick app iconBrightwickLight Meter & Lux

Is this room bright enough? A lux meter that tells you.

Point your phone at the light and Brightwick shows the lux, what it means for reading, cooking or your plants, and how far you are from the target. Phones without a light sensor get a labelled camera estimate.

  • Lux or foot-candles with a verdict and a target
  • Works on phones without a light sensor
  • No account, readings stay on your phone

Coming soon to Google Play.

Brightwick screen: Room: lux with a verdict

Swipe through Brightwick

  • Plants: is this spot bright enough?
    Plants: is this spot bright enough?
  • Photo: an exposure meter
    Photo: an exposure meter
  • Before and after, per place
    Before and after, per place

What you can do

  • Room: lux with a verdict. A big lux or foot-candle number, a light ladder from 1 to 100,000 lux, min, average and max, and the target for your desk, kitchen or bedroom.

  • Plants: is this spot bright enough?. Low, medium, bright or direct light, which of your plants are happy there, and an estimate of daily light (DLI) in Pro.

  • Photo: an exposure meter. Spot metering through the back camera or incident metering with the light sensor, with aperture, shutter and ISO dials.

  • Before and after, per place. Save a reading before you change a bulb and again after.

Free vs Pro

Pro is one payment through Google Play with no subscription. You can also try all of Pro for 24 hours by watching 2 short videos, once a day.
FeatureFreePro
Lux, foot-candles, min / avg / maxIncludedIncluded
Saved readings20All
Plant daily light (DLI)Not includedIncluded
Photo: EV comp, ND, half stopsNot includedIncluded
Calibration1 pointCurve
CSV exportNot includedIncluded
No adsNot includedIncluded

Questions

How it works
  1. Open it. The number appears at once, no taps needed. Face the top of the phone to the light.
  2. Read the verdict. Brightwick tells you if the light suits reading, cooking, relaxing or your plants.
  3. Save it. Two taps saves the reading to a place, with an optional note.
How accurate is a phone light meter?

Phone light sensors are good for comparing rooms and seeing whether you reach a target. For a firmer number, calibrate once against a light meter or lamp you trust.

My phone has no light sensor. Does it work?

Yes. Brightwick uses the front camera instead and labels the number as a camera estimate, which can be off by up to 2x.

Does it record photos or video?

No. The camera is only used to read brightness. Nothing is recorded or saved, and nothing is sent anywhere.

Is Brightwick free?

Yes. Lux and foot-candles, min, average and max, verdicts and targets, the camera estimate, one-point calibration, the photo meter dials and your latest 20 saved readings are free. Older readings stay on your phone. Pro adds daily light for plants, exposure compensation, ND and half stops, multi-point calibration, all history, CSV export and no ads.

Privacy at a glance
Readings, places and notes
Saved only in the app's private storage on your phone, with your settings. They are never uploaded, never sent to us and never passed to the ad SDK. If you use Android device backup, they may be included in that backup, which Google encrypts for your account.
Light sensor and camera
The light sensor value is read on your phone. When you use the Photo mode, or measure on a phone without a light sensor, the camera is used only to read brightness: no picture or video is recorded, saved or sent.
Plant spot photos
Optional, chosen with the Android photo picker, so the app has no access to your gallery. The photo is copied into the app's private storage and never leaves your phone.
CSV export
Created only when you ask, and shared only where you choose.
Purchases
Handled by Google Play; we never see your payment details.

Permissions: Camera, asked only when you open the Photo mode or choose to measure with the front camera on a phone without a light sensor; it reads brightness only and records nothing. The light sensor needs no permission. No microphone, location, contacts, photos and media, storage or notification permission; plant spot photos come from the Android photo picker. Google's ad and purchase libraries add the advertising ID, network state and billing permissions. Internet is used for ads, purchases, crash reports and the settings file described above.

Read the full Brightwick privacy policy

Something else? Write to support@tinyfair.my.id.

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