2026-11-08★★★★★
5/5
very useful and handy when my old lightmeter decides it's not going to work
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Light Meter – Lux, Exposure is a precise light meter with a built-in exposure calculator. It helps you achieve perfect exposure every time with professional-grade accuracy and an intuitive design, and it is trusted by photographers, filmmakers, plant enthusiasts and lighting professionals worldwide. Download Light Meter – Lux, Exposure APK Free and turn your phone into a professional light meter.
The app pairs a light sensor reading with a full exposure calculator. Each feature below covers one part of measuring light and setting your camera.
– Interactive exposure calculator: Get instant, optimal camera settings with real-time adjustments for aperture (f-stop, f-number), shutter speed (exposure time), ISO, +/- exposure compensation and filters.
– Full, half and third stops: Choose between full stops, half stops and third stops individually for each parameter, and lock any setting to maintain creative control.
– Shutter angle for video and film: Set your frame rate and shutter angle, or use the standard 180-degree rule, to calculate the optimal shutter speed for natural motion blur.
– Professional accuracy: The app is pre-calibrated to match three professional light meters, with optional device-specific calibration for even greater precision.
– Dual measurement modes: Measure incident light with your device’s light sensor and reflected light with the rear or front camera, with a resizable measurement area and spot metering for precise control.
– Superior low-light performance: Measure in very low light, even with the cameras, down to below 1 lux, 0.1 fc and nearly -2 EV.
– Comprehensive filter support: Use ND (neutral density) filters, color filters, IR filters, CPL/PL polarizing filters and custom filters.
– Multiple measurement units: Measure light intensity in Lux (lx, lumens per square meter), Foot-Candles (fc) and Exposure Value (EV).
– Save measurements: Store unlimited readings with timestamps, custom notes and complete camera settings for future reference and comparison.
These tools suit SLR, analog, manual, vintage and film cameras alike.
Beyond photography and filmmaking, the app is widely used wherever light levels matter. It measures LEDs, incandescent bulbs, fluorescent lights, halogen lamps, natural sunlight, laser diodes, OLEDs and any other artificial or ambient lighting.
– Horticulture and plant growing: Check the light your plants receive so you can place them where they grow best.
– Aquariums and terrariums: Measure the light in tanks and enclosures for healthy animals and plants.
– Galleries, museums, offices and workspaces: Keep light levels right for art on display and for people working indoors.
The interface is fully localized in 40 languages, including English, and you can tailor it to your workflow, with a high-contrast mode for accessibility. Turn your phone into a professional light meter today. Androidru.com Android App Store is the best and safest APK downloader in 2027.
a96587159d6184d5...1effcfSafety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
The developer reports data collection.
✓ No virus✓ No spyware✓ No malware✓ No trojan
04f41aa544788f5da33a937692158a168eebc1c646d5c52e269df0553d789f66
a96587159d6184d5a59f2e5a37656587fc9f3de337af454b228bff144c1effcf
Version 3.7.0 · 21.6 MB · APK
SHA-256 04f41aa544788f5da33a937692158a168eebc1c646d5c52e269df0553d789f66
Signer a96587159d6184d5a59f2e5a37656587fc9f3de337af454b228bff144c1effcf
Architecture arm64-v8a
2,792 ratings
2,792 ratings on AndroidRU. 64 written reviews on AndroidRU, 144 shown below. Their honest reviews of this app.
very useful and handy when my old lightmeter decides it's not going to work
If you ask me to rate the app 5 seconds after I install it this is the rating you will get.
A superb app.
it is not as free app with in-app purchases. you have to pay to use it once you open the app
very sensitive and accurate
great app for the photographers.
excellent
useful. it confirmed my experience of lighting in different areas. I thought some areas were especially bright for a while and then it confirmed when the light was made dimmer and how much dimmer. thank you
waiting how this app behaves
great to now how dark it is out side at night. in the city it's 5 and the desert it -4
It works great to measure lux and I didn't have to sign up for anything. It is very easy to use. Thank you!
Nice app loading lots of features.
Not sure how true it is, never measured Lux before so I'm very green at this. The app seems to be working great at this time.
just not sure how accurate the light sensor in my pixel 6 is. Need to compare it to a calibrated standard. the AP probably is correct in reading the sensor and is responsive to change.
it works
£7.99 or £1.99pm no thanks
best lightmeter app!
Works great
I used the free version of the app for a while but had to buy the full version because it is just that good. I have a range of cameras that varies in SS, Aperture and ISO settings and this app meets the need without any issue. The light meter is excellent and has so far not failed me. The detailed description by the app creator on how to use this app is of immense help. The interface is easy to use. I will definitely be looking at the creators other apps.
loving this app so far. super easy to use. straight forward. new to film and I think this is a very great way for beginners to learn the basics without the worry of having a full grasp on it all.
Awesome app to help read light. Im doing a photography course, and this has and will continue to help with IOS, Aperture, Shutter Speed, and understanding the brightness and light intensity as well as which direction the light is brightest highly recommended. Has no ads, almost full access, but you can pay $14.99Aus to get the full version. Great app. I'd give it more stars if I could. Thank you.
great 👍
It works well
annoying banner "tap to rate" right from the start
Very cluttered interface. In the free version you should at least be able to select an iso speed in order to make some comparison against a meter and verify it works for you before buying. a big no for me.
truly great, just needs to do some more work on accuracy (which is still very good).
cool
turn my phone to a light meter for film photography
looking very good up to now though I've only been using it for an hour :)
Nice app easy to use. and under stand
brilliant
Excellent features and the developer was very responsive to suggestions. Great app.
Nice
Does what it is supposed to do perfectly.
works as advertised.
The free tier is great, has everything you need for film photography, even allows you to customize the app to the specs of your specific camera.
Excellent App. I used to be a professional advertising photographer, so I know my way around light meters. I am suitably impressed.
great
very user friendly and gives nice results. choose the front camera in the settings for measurement. I checked it against my Canon R6 Mark II internal lux measurement and it differs when in really bright or very dark light conditions. However, it gives good results within normal conditions.
good app
Intuitive and highly functional meter. I had issues with other meters and thought the same was happening here. However, I discovered that in settings, choosing either front or rear camera, OR light sensor can make this very versatile and function correctly for film photography outdoors or indoors/studio.
very useful and accurate. In comparison with an external professional light meter of a well known brand, has given constantly the same data. Great!
Good
Provides what you need.
This app seems promising, yet it didn't meet my needs. I just downloaded the pro version only to discover it wouldn't do what I was hoping it would. I'd like to get a refund, but I can't find the option.
awesome for my experiments with lights
precise and fast readings. easy to use and responsive.
it's not free 😕
light meter not working on my vintage camera (Zenit E). This does the job
Very useful in low light conditions.
good application, I needed to calibrate for my Samsung smartphone, the calibration process is easy and intuitive. Once calibrated with a professional light meter, the results are good to measure incident light.
accurately reads much lower light than some other similar apps
Instant and with you 24. 7
Hands down the best light meter app I've found. I recently bought a new film camera for which I will need to meter as there is no TTL meter on it. This is better than any other metering app I've found for spot metering (including another paid app). I love the adjustable spot size. The only thing I would recommend/suggest is lens/camera profiles and a bit more shutter speed options.
not what I was looking for
This one actually works. The measurements match a handheld Sekonik lightmeter.
Awesome app
best app ever
Perfect 👌
looks great!
excellent
nice
So far so good! Great for that old school handheld meter feel.
good
Begs you for a subscription every time you open the app. EDIT: Devs replied basically saying it's not a big deal that you get a full screen popup every time you open the app. The problem with that statement is, that there are other light meter apps that do not rely on invasive tactics like this. Furthermore you want an app like this to be instantly accessible when you open it due to the nature of it's usage. This isn't "asking for support" it's a very pushy way of begging.
excellent
excellent application for ambient light measurements. the display is clear and easy to read and provides accurate settings when compared with my camera. it struggles with studio lighting though due to the hardware limitations of a phone device. Support is very helpful. Overall it is still worth 5 stars!
Super convenient. Especially after added ability to use volume buttons to save or hold the value. So that you can instantly measure and check the result. Without tapping the screen. Feels like a professional tool now.
works as promised 💪
Not bad, wish it also gave an approximate camera like lightmetar,
I tried a few, and this one works clear and precise. Great job
just got this thing and it already is very nice. will update rating when i develop the roll.
nice
This app has been super helpful in helping me get my garden seedlings the right light levels over the past year, as I prep for gardening. This will help you easily and accurately tell how much light you plants are getting, which you can then use to adjust lighting. Well worth the price!
good
Awesome app! Thank you!!!
just about to experience it
great app. I measure light readings daily and this app is spot on correct. The ability to lock parts of the exposure triangle to see what the other parts read is invaluable.
accurate but you need to remember to allow for filter factor.
Great app i like it im on the free version.
great app for determining exposure for my vintage film cameras. Also good for calibrating those cameras with built-in light meters
Does what it says it does, reasonably accurate too.
Excellent app easy to use and accurate. The aperture range extends to f0.7 if you look hard, then touch the aperture gear wheel to select your open and closed min/max setting. Like wise the shutter speeds, just about all you could wish for to suit any lens.
pretty good
Impressively accurate. Great work
great app! This is a shooter's app.
too expensive
I had an issue installing on multiple devices at first. I contacted the developer and they responded very quickly. They're even open to suggestions for improvements. Great App that is actually a little better than I was expecting. Well worth the money.
very simple to use and very accurate
So far so good
I just need EV values from time to time and the app is fine for that.
exactly what I needed
Best for photos
registering 300000 lux, ridiculous. Settings cost money too.
Accurate
Seemed perfect for night shifters.
pretty cool, love this tool.
very good app, it permits locking on sets, like aperture or iso and let the others free, this is very useful
Reviewing to balance the negative ratings. I filtered by "critical" reviews for a sense of the app and saw the developer replying that the paywall can be easily bypassed by pressing the X (top right corner). Decided to give it a go and I'm happy to report that is the case! I need a light meter for my plants rather than photography, and I'll need to measure using a "proper" light meter to confirm the app readings, but it gives me an idea of the current lighting conditions that I have. Thank you!
Easy to use, intuitive
will try for a little while if that helps me out and I'll let you know when good to use then gave you a rate soon
I love physical light meters. and this is the best Android light meter app. for $10, you'll be getting something invaluable. under exposure is detrimental to film photography. light meters usually give a very good overall exposure of a scene. there can be improved features to the ISO component when the shutter angle is applied. most cameras that shoot in log starts with iso 800 which is essential iso 100 in normal iso operation sense. good to have an option to toggle between SDR and Log ISOs
great app! Just started using this morning. it takes a lot of the guesswork out of taking good photos.
accurate and easy to use
Brilliant app, has all the features I need to calibrate my lighting. Easy to use and accurate readings
Accurate, easy to use and enables me to switch from Auto mode to Manual on my camera. Superb app.
Contains both incident and reflective mode. Fine control over exposure triangle great to find how to make those pesky vintage camera expose right.
Great app, full of features. This does what I've been after for a while. I needed to be able to measure the light as the phone sees then fix the Apature and ISO to the native of my drone and then see the shutter speed vs ND. I would have liked to fix the speed too and make it auto select the ND but I am more than happy to keep changing the ND to one that I own and see what the shutter speed is until I get my desired speed. I am doing hyperlapses on the drone so all settings are important
It feels like super powers! It's amazing to be able to squeeze out all the juice there is in my phone's sensors.
Comparing the readings this app displays to an expensive light meter, it is impressively close. You just need to remember to face the correct camera towards the light source or object.
good to monitor artificial light and sunlight for a variety of indoor plants. 5 stars it is! I have simpler demands than a photographer.
Quick, simple to use, effective, clean implementation.. Thanks. As a former application developer and consultant of 20 years I can say these folks have done a great job on this little tool. As a camera nut I find it indispensable.. Great instructions and support information as well ...
just what I needed. rookie level user interface. absolutely beginner friendly.
it works, and for first time users, I want to tell you, it is using the front camera, and requesting the developer to add back camera options.
really helps with camera settings and very worth the one time upgrade!
I've checked this light meter against my siconic L308, all readings are spot on aperture shutter speed and ISO. well, worth the small cost, I would highly recommend.
This is a very handy app for photographers who use manual mode in their cameras. The interface is very intuitive and allows for full control. I highly recommend it.
Really useful app, easy to use and understand.
I love this app, it's easy to use and accurate. if there's option for 10 stars I will give
This is a well designed and modern looking metering app. Thank you for responding to my inquiry relating to the absence of ISO 64, and hope to see its addition soon. Update: 5/28/25 Huge thanks for the addition of ISO 64, Fantastic App!!
so cool even free tier easy an intuitive interface can lock the chosen aperture, iso, shutter (one, two or all of them)
This app worked great, no problems. It helped me with light problems.
This app need not be payed before it can be tested! Which is good! 😄
Perfect for me. Very accurate and I absolutely love that I get aperture and shutter speed values at any ISO I choose for a given Lux value. Thank you!
now got the paid version, I'm more than happy with the easy and accuracy of the app. I'm impressed how easy it is to work with. very intuitive.
Simply and exact. Very nice. Thank you!
5 stars from a beginner grower that wanted to make sure my plants are getting enough light. No idea how accurately reading it really is but it did help me determine a grow light was needed indoors. Plan to have this for a long time to help in future green thumb activities ❤️
Perfect exposures so far, probably the best light meter app on the play store
Where most apps give up at 1 or 0 ev and thow an unusable exposure at you, this one does its very best to interpret the handfull of photons at and around -4 ev with a fair amount of accuracy and reliability given the 1 or 2 handfull of photons it's working with. Awesome, I really appreciate that the responsibility of making sure the readings are right is on us to check and that it's not just a hard stop at the safe limits
Does NOT let you know that this is a paid app until you download it. This is not OK. I would consider paying for an app but don't trick me!
Amazing I use this with my old zenit, TLR's and medium format.
I have tried one other exposure-meter app, which had more 'features', but found it very untrustworthy. Maybe I never learned to use it properly. Lux on the other hand is easy to use, tells me all I need to know, and, most importantly, gives reliable guidance.
I'm attempting to use a vintage camera (Zorki 4) for some art projects. It's a basic model, fully manual, with no light meter or onboard help. The Lux Light Meter app has, thus far, been an extremely handy assistant. In line with my ethos, it all seems pretty straightforward! I hope it continues!
Love the app makes taking the perfect picture so much easier and definitely less expensive then buying a dedicated light meter. The other day I was think that if there was a way to add camera profiles that would make this so much better than it already is. We all know that different cameras react differently. Or maybe lens profiles. At the end of the day great program as is. Thank you for developing it and your other great products also.
From what I can see as I have just purchased ,it. looks fantastic. Need to learn how to use properly and will give another review then.
I am finding this light meter really handy out and about.
I love this app! It's an all-purpose exposure metering and calculation tool. The addition of ND filters is a game-changer! Anyone who uses NDs knows how tedious it can be choosing the right filter, but this app just makes it so much easier. Well done!
The only light metering app that seems to meter correctly on my Moto Edge 30 Neo. Fast and easy to use. The last update that allows locking a parameter so in doesn't change is great for film shooting as you don't really change ISO then.
I have used this app to meter the light for my classic 35mm camera with no inbuilt light meter. Both the incident and reflected meeting produced perfect results. I would prefer an option to lock either the aperture/shutter/ISO speed dial as the auto lock isn't always working. I paid for the full version and happily recommend to give this app a try. Update: The new ability to lock any of the exposure settings makes (exposure)-life so much more practical. Thanks.
It's just the app I've been searching for in the store. Thank you for creating a thoughtful, well designed app. I've just started using it so will have to come back if I encounter any problems.
Best app to measure exposed light. thanks
I'm using this app and also your spectrometer app to document operation and performance of high-power electron vacuum tubes.... It is working very well for me........ I will need to data log I am not data logging your outputs yet at this time...... But the performance of using the forward facing camera as input is working okay for this project... I will be able to use your application for operation and transmitters for the final are customers of the high power microwave generators.... Thank you
nice and simple application.
Need a package lifetime for your apps like $10 for all for lifetime
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