# Light Meter - lux and foot candle measurement tool — user reviews

> 68 indexed App Store user reviews of Light Meter by Marina Polyanskaya, rated 3.80/5 from 121 ratings.

- Source: https://appshunter.io/ios/app/light-meter-lux-and-foot-candle-measurement-tool/id1037610013/reviews
- App overview in markdown: https://appshunter.io/ios/app/light-meter-lux-and-foot-candle-measurement-tool/id1037610013.md
- Rating breakdown: 5★ 65 · 4★ 17 · 3★ 7 · 2★ 11 · 1★ 21

## What do users think of Light Meter?

Overall sentiment: mixed

**Pros**

- 👍 Great for quick measurements
- 👍 Useful for plant light assessment
- 👍 Good for comparing lighting
- 👍 Works for simple needs
- 👍 Convenient for investigators
- 👍 Consistent readings
- 👍 Accurate for some users
- 👍 Easy to use interface
- 👍 Good for electronic testing
- 👍 Useful for ambient brightness
- 👍 Good for LED control
- 👍 Works like a charm
- 👍 Compares well to digital instruments
- 👍 Data recording feature
- 👍 Professional and accurate data
- 👍 Good for low-light concerts
- 👍 Convenient and great idea
- 👍 Stimulates real illuminometer
- 👍 High measurement accuracy
- 👍 Very scientific software
- 👍 Easy to operate
- 👍 Powerful features
- 👍 Makes life more convenient
- 👍 Best free light meter app
- 👍 Only free app to swap cams

**Cons**

- 😞 Inaccurate readings reported by many
- 😞 Readings off by an order of magnitude
- 😞 Readings are not even close
- 😞 Readings less than half of professional meter
- 😞 Readings are very inaccurate
- 😞 Readings are way off
- 😞 Readings are 1/3 of actual
- 😞 Light measurement is a little off
- 😞 Indoor/outdoor settings give odd readings
- 😞 Readings very different between cameras
- 😞 Inconsistent results
- 😞 Readings are low at high levels
- 😞 Not accurate for high levels
- 😞 Readings are erratic
- 😞 Indoor setting way off
- 😞 Outdoor setting up to 30% out
- 😞 Does not work at all
- 😞 Plain does not work
- 😞 No reading obtained
- 😞 Useless for accurate readings
- 😞 Waste of money
- 😞 Not a photography tool
- 😞 Not what I was looking for
- 😞 No customer service
- 😞 No instructions provided
- 😞 Arbitrary readings

**Commonly reported bugs**

- Indoor option fails after first use
- App does not work
- No reading appears
- Lighting bolt reacts but nothing happens
- Difficult to reset

**Most requested features**

- Add color temperature reading
- Ability to see the image
- Instructions on how to use
- Recalibration option

## Newest reviews (10 of 68)

### 4/5 — Best free light meter app.

*2025-10-16, version 1.1*

It doesn’t measure constantly, you have to hit a button to sample, BUT it is the ONLY free light measuring app I’ve found that will let me swap cams for different situations!

### 4/5 — Make sure you use the best camera on your phone.

*2021-02-27, version 1.1*

My I phone has a front and back side camera.  I have a screen protector on the face that affects the readings.  I make sure I use the back side camera for most accurate results with this app.  Can’t speak to accuracy compared to a standard.  This app works great for my needs.

### 2/5 — Could be user error but

*2020-07-13, version 1.1*

It’s totally possible that I’m using it wrong, but since there’s no instructions, I don’t know how else to do it. It seems pretty arbitrary, like I’ll hold it up to one spot and it will give me a light range from like 18 fcs to 2,000 fcs so idk.

### 4/5 — Simple and effective.

*2017-10-05*

All I wanted was a simple light meter that could read the incident light in lux and footcandles. I wasn't looking for a throwback to the era of chemical film. 

If it also gave color temperature I would have given it five stars.

### 2/5 — Completely inaccurate

*2017-10-03, version 1.1*

It will show relative differences in lighting but the values given are totally inaccurate when used side by side with real light metering equipment.

### 2/5 — Not accurate

*2017-09-27, version 1.1*

Nice to use but not accurate.

### 5/5 — Works great

*2017-08-15, version 1.1*

This app works great. It is everything I need.

### 5/5 — Amazing!!

*2017-07-16, version 1.1*

Disregard any negative comments! From an app developer standpoint I appreciate the effort put into this app. For reading light values from a camera, this is very accurate. Buying this app you have to know that it's coming from an iPhone, not a comercial light meter! Great job!

### 5/5 — Rival professional

*2017-06-02, version 1.1*

Concise interface,intuitive and easy to use,especially the attention to detail is good,for example,front,back,indoor,outdoor.Especially in the outdoors, I can see the display readings. After more than 10 days of use, this app runs properly, without any failure. Perfect app!

### 4/5 — Nice app!

*2017-05-28, version 1.1*

This app works perfectly and very useful!!!! Recommend it!!!!!!

## Most critical reviews (10 lowest-rated)

### 1/5 — No sirve la app

*2024-07-26, version 1.1*

Decepcionando, las mediciones son pésimas no se aproxima al valor de un instrumento de medición

### 1/5 — Not even close!

*2020-02-28, version 1.1*

Tried it with Iphone 11 and compared to a professional lux meter. The readings are off by an order of magnitude (about 8 times)! It is unclear how the developer could have “calibrated” the app when it is so grossly inaccurate. Deleting it...

### 1/5 — This app doesn’t work at all. Zero. Tried free and paid versions, all dead.

*2018-12-22, version 1.1*

This app doesn’t work at all. Zero. Tried free and paid versions, all dead.

### 1/5 — Plain does not work

*2018-11-04, version 1.1*

I would award no stars if possible. The lighting bolt reacts to having been touched, but nothing happens. There seems to be no settings menu or anything to help fix it.

### 1/5 — Inaccurate readings

*2018-10-18, version 1.1*

This app does not work. Measured foot candles via the app which reflected a level of 28-30. Compared to an actual device to measure light levels which reflected 70-80. Waste of $2.

### 1/5 — Does not seem to work anymore

*2018-07-13, version 1.1*

I needed to make a reading but it doesn’t appear to work. I get no reading.

### 1/5 — Not Accurate

*2018-02-25, version 1.1*

Don't waste your time and money!  I conducted a side by side comparison and the reason from the app was very inaccurate.

### 1/5 — Senseless

*2017-09-13, version 1.1*

No instructions, inconsistent outcomes. Trying to assess home lighting status and needs, doesn't make sense. Paid 1.99 for app with no instructions on how to use. Point it at light fixture? Wall? Floor? Size of room parameters? Perhaps this is just not what I was looking for.

### 1/5 — Not accurate

*2017-08-30, version 1.1*

Not accurate on foot candle readings. I bought to see if I could use it on lighting control programming. Worthless since it doesn't take accurate FC readings.

### 1/5 — Useless

*2017-05-29, version 1.1*

I bought it because I'm looking for an convenient app so I don't have to bring a separate light meter. Side by side, on exact location and conditions, I get 36 on a professional light meter and 26 on this. 5 - 10% error would be OK, but this is a joke.

## Most praised reviews (10 highest-rated)

### 5/5 — Great for me

*2022-12-18, version 1.1*

I just use a light meter for plants, and for that it's excellent.  It need not be perfectly accurate for me, and it's great for comparing the available light under lights and in windows as the days get shorter and the sun gets weaker.

### 5/5 — The

*2022-12-10, version 1.1*

The tw c

### 5/5 — Works Great

*2022-09-03, version 1.1*

Have used many times and great for a quick measurement when you don’t need full field equipment.

### 5/5 — Great app

*2020-10-31, version 1.1*

Exactly what I needed to confirm my plan for a tropical paradise escape bathroom!

### 5/5 — The best app for measuring illumination. WeHave tried several. We use this in el

*2019-08-28, version 1.1*

Electronic testing. Accurate, easy to use. Simply the best.

### 5/5 — Personal Injury metet

*2019-08-17, version 1.1*

As an investigator of tripping injury accidents, the ability to get a light intensity reading with my phone cuts down on a lot of equipment to lug onto a job site.  Love this app.

### 5/5 — Helpful app

*2018-11-26, version 1.1*

Gives consistent readings. I use it to compare lighting in different rooms and comparing different fixtures.

### 5/5 — Light meter very good

*2018-09-25, version 1.1*

I spent over 60 years in electro optical engineering, and this is by far the best two dollars I ever spent.   I agree the color temperature would be a big plus, and to be able to see the image would be very helpful to get things pointed the right way.

### 5/5 — Excellent!

*2017-08-27, version 1.1*

Used it during the eclipse. Was accurate. I like the ability to record time and multiple entries.

### 5/5 — Notifications must be on

*2017-08-20, version 1.1*

Just downloaded it. It will only work with on. Easy to use

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*