Light Meter
A reflected light meter with spot metering and incident light metering.
App info
App description
Android App Analysis and Review: Light Meter, Developed by WBPhoto. Listed in Photography Category. Current Version Is 3.0-2025-08-17T20:10Z, Updated On 17/08/2025 . According to users reviews on Google Play: Light Meter. Achieved Over 14 thousand Installs. Light Meter Currently Has 435 Reviews, Average Rating 4.4 Stars
A reflected light meter with spot metering (using the device's camera) and an incident light meter (using the device's light sensor) in one app. Tested accurate against Gossen and Sekonic meters on most devices.Can be used for any type of camera from film SLR to pinhole to cinematographic.
In addition to the two meters, the app includes a Color Temperature (White Balance) meter, a Reciprocity Calculator, an Exposure Convert, a Manual (Sunny Sixteen) calculator, a Depth of Field calculator, and an EXIF Reader.
What's New
* B&W/Filter Preview Modes
* Improved Camera Performance
* Better control over max/min values
* Enhanced Saved Exposures including GPX export
* Cross-device backup of settings
* Bug fixes
* Improved Camera Performance
* Better control over max/min values
* Enhanced Saved Exposures including GPX export
* Cross-device backup of settings
* Bug fixes


Recent Comments
Khosrow Jalali
I'm not convinced that this App has gone through enough R&D and tested accross multiple devices. After re-installing the App on my Samsung Galaxy S10 + to get the light meter to work, I'm not confident this has fixed the issue ( the light meter) keeps freezing. It's is an awesome App and quite useful. Please contact me and I will send you the full details and screenshots where possible to assist resolve the issues with your App. It has a lot of potential to be amazing. Edit: issue is resolved.
Diko
I think it's a pretty good app. I've shot about 10 rolls of film using it and very rarely had exposure issues. I'm knocking off a point because the camera sensor is the most used app and in the top right corner. if you could sort apps I would give it 5 stars. I have a taller phone (S24 ultra) and have to use two hands to get to the camera sensor as is.
A Google user
App worked well after one photoshoot and it stopped functioning. The sensor feature stopped functioning after a single photoshoot (that's the function that I purchased the app for). I uninstall and reinstall the app to no avail. When it worked it was very accurate and it gave me great exposure settings. Oh, well you get what you pay for. **Response: it's just not reading
Mark Brown
Lots of functionality, but not sure of the accuracy. I compared it with a Gossen Luna Pro with the adapters from CRIS Camera, my old manual SLR with a Wein cell, and a Gossen Luna Pro SBC with a 9v battery. The camera and both the Luna Pros were within 1/2 stop every time, but this app was always off by over a stop or more. In the end, it always comes down to seeing how your camera shoots with the settings the meter suggests, then adjusting accordingly...
Chris Selig
Didn't work. My phone is a galaxy s20 ultra and the numbers this app was giving me were way off. I pointed my phone at a very brightly lit space, set the f stop and iso accordingly, but the calculated shutter speed was ten seconds. I tried to fix it, but nothing I did made the app give me correct calculations. I don't know if it was a problem with my phone or the app itself, but unfortunately it's useless if it doesn't give me the right settings.
A Google user
Not accurate on Moto G6. Off by about 3 stops when compared to LunaPro SBC. But it can be calibrated to counteract the error. Incident seems to be fairly correct. Spot is erratic and slow to respond. At one point I moved the spot from light to dark area and the EV value went up! Too bad as the concept is good and the app is well designed from a usability standpoint. Too late to get my money back. The improve this app I would display all combinations of shutter speed and aperture simultaneously.
Ambrose Field
Fantastic. Really useful. My phone is about 0.5 of a stop off. Would be great to have a separate calibration setting, so that the plus/minus correction could just be used for working out placing the image in a particular zone etc, but hardly any inconvenience as is. A great app, love the spot meter zoomed in - super accurate. Other thoughts: if it could perform a screen grab to act as a reference, that would be cool for image review. Thank you for your work on this.
Mark
Works pretty well. I've been using this for about 2 years now and on two different phones. It seems to be fairly accurate in bright - low light situations. It doesn't work super well for night shots though, but good enough. I have noticed that it gives different reading from my cameras light meters (Nikon FG20 and a Canon F1) but I've tested it and neither are wrong.