Rex Light Meter

Loved it most compared to all other app. Main advantage is it works with speed lights as it has a option of save max. Exposure rating.

obviously it's not as accurate as a regular digital light meter, but it does the job and it's simple to use. light metering in LUX and EV is useful, as well as the possibility of calibration. also, it's the lightest light metering app I've tried! and it's free, and ad free. loved it.

on Nexus just need to add one stop. works better than all the other light meter that either can't save settings or just silly stupid . this works as intended

It relatively working, but can you have more tuning? I'm having Nexus 5. Seems -3ev still unable to tune mine. Thanks. At least 1 stop short...

This app doesn't work

Works when you need a quick check on your exposure specially when strobe lighting. It's not effective on well lit places though. But when it works it's always spot on.

This is a lovely versatile light meter. Just be prepared to calibrate it and it wont disappoint you.

Excellent with nexus s

Really nice app, very easy to use, and free . It is around 1/3 and half stop off compared to my sekonic readings, but mostly consistent. Great companion for old school film cameras without lightmeter, and good as a backup. A flash reading capability would be a marvelous upgrade.

Of course this can't replace a real lightmeter, as the technologies are different. But what I would like to see is the ability to switch between the front and rear facing camera.

So far I like... love the simplicity of the interface no fuss no gimmicks. When you consider how and when you well be using this the last thing you need is distracting graphics.

This app doesn't promise to do a lot, and it does what it says, instantly. It's also tiny and fast, which is great.

Tried all the other light meter apps and this is the best. Does exactly what you need and no fuss. Easy to use interface.

I love this app. No app is perfect, so find what works for you. I found mine. Just awesome.

App looks good but no way to set it to use the rear camera on my phone.

Can record Max lux if set on settings page and hold down read button.

But its new for me , will see how well I can see it outdoors. That matters.

Works as it should on my Motorola. Simple interface, as good as any hand held device.

I compared it with an actual light meter. It is off by about 2/3 stop. As long as it's consistently wrong, that's not too bad.

So much easier to use than the other meters out there. Really impressed

Way overexposed with the Galaxy S4.

Best light meter for Galaxy S3 as it can read the flash light as well. Very nice and clean app.

Not measuring anything. Looks good though

No matter what light conditions on a HTC One m7

Obviously, its free, and uses the light sensor Ov the front, so its ok for indoors. You can spot a subject unless you put the front of the phone right up to her.

I spent an hour or so testing this incident light meter app on my Galaxy Nexus against a grey card and my Nikon D5100's reflected light meter. The results were great. Sure, it's not as precise as a Sekonic, but hey, it's still both free and accurate. I also like the clean and ultra-simple interface.

On my phone/device it seems as if the measurements are taken from the front facing camera.. this makes it difficult to use or trust.. so if i am right in my thinking ...then i would like an option to toggle between the front and rear facing camera sensor/s.. Cool app.. but i don,t trust it YET....

Not all that accurate. Setup is nice though and I think with some work it may have a chance.

Seems to work in conjunction with my Nikon D600 on spot metering, when used as incident metering (pointing the meter facing the light source as opposed to measuring the reflected light that has already hit the subject). I don't know if it will be just as effective as an ambient light meter (like walking on a bright sunny day and taking a reading with the phone pointing straight up to the sky as opposed through an angle you would be shooting from). Planning to use this as a back up meter for a Leica M6 TTL. [Update: January 8, 2013] Seems compared to my Sekonic L-358 (Yes I ended up buying a proper light meter lol), the app results tend to vary by 1/3 to 2/3 of a stop. IE what would be 1/30th on my Sekonic meter - would be 1/40th or 1/20th. But it all depends on the angle. The Sekonic and most dedicated light meters have the diffuser dome and those are much more accurate for all around light level measurement. It is "accurate enough" when conditions are ideal. But then again if you think about it... Sunny 16 works just as well.

This is probably the easiest to use light meter app out there on the market. Only thing I would like to know is of it's accuracy compared to real light meters. But maybe I'm asking to much :P