# Light Meter - lux and foot candle measurement tool

> Pocket light meter for measuring lux and foot candle intensity. (iPhone/iPad app by Marina Polyanskaya.)

- Source: https://appshunter.io/ios/app/light-meter-lux-and-foot-candle-measurement-tool/id1037610013 (this page in markdown: same URL + `.md`)
- Developer: [Marina Polyanskaya](https://appshunter.io/developer/1519482916)
- Category: Utilities, Medical
- Price: $1.99
- Rating: 3.80/5 from 121 App Store ratings · 68 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 24 MB
- Languages: American English, French (France), German (Germany), Italian, Russian, European Spanish
- Released: 2015-09-15
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/light-meter-lux-and-foot-candle-measurement-tool/id1037610013/reviews.md

## What is Light Meter?

Light meter in your pocket!

The only app you really need to measure light intensity. Calibrated with professional Illuminometer.

Features: 
- Realtime measurements 
- One-time measurement
- Average and Max values
- Indoor and outdoor modes
- Front and rear cam
- Lux and Foot candle measurements

Please note that Light Meter app is not a replacement for a professional device and should be used for private purposes only.

Have any questions or suggestions? Write to us: support@lspapps.com

## Key features

- Real-time light measurement
- One-time measurement option
- Average and Max values
- Indoor and outdoor modes
- Front and rear camera support
- Lux and Foot candle units

## 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

## Recent user reviews (10 of 68)

All indexed reviews: https://appshunter.io/ios/app/light-meter-lux-and-foot-candle-measurement-tool/id1037610013/reviews.md

### 4/5 — Best free light meter app.

*2025-10-16*

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!

### 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

### 5/5 — Great for me

*2022-12-18*

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*

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

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

*2021-02-27*

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.

### 5/5 — Great app

*2020-10-31, version 1.1*

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

### 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.

### 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...

### 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.

## Frequently asked questions about Light Meter

### What does this light meter app do?

This app functions as a light meter, allowing you to measure light intensity directly from your smartphone. It provides real-time readings in both lux and foot candle units, calibrated to be as accurate as possible.

### What are the key features of this light meter app?

Key features include real-time and one-time measurement options, the ability to view average and maximum light values, distinct modes for indoor and outdoor environments, and support for both front and rear cameras. It offers measurements in both lux and foot candles.

### Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, suggesting a completely free experience for users.

### Can this app replace a professional light meter device?

The app is intended for private purposes only and is not a replacement for a professional-grade illuminometer. While calibrated, it is designed for personal use and hobbyist applications rather than professional photography or lighting design.

### What are some common use cases for this light meter app?

Common use cases include checking light levels for photography setups, assessing indoor lighting for comfort or productivity, or simply understanding ambient light conditions outdoors. It's useful for anyone needing a quick and accessible way to measure light intensity.

## Version history (last 2 releases)

### 1.1 — 2016-09-08

This update from Apple will improve the functionality of this app. No new features are included.

- fixed bug with max and average value reset

### 1.0 — 2015-09-15

No release notes.

## Apps similar to Light Meter

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Light Meter: Lux-525 Pro](https://appshunter.io/ios/app/light-meter-lux-525-pro/id1636117065) | 4.5 (113) | Free | Utilities |
| [Light Meter LM-3000](https://appshunter.io/ios/app/light-meter-lm-3000/id1554264761) | 4.5 (2,547) | Free | Utilities |
| [Light Meter - Brightness Calc](https://appshunter.io/ios/app/light-meter-brightness-calc/id1340670397) | 4.2 (5) | $2.99 | Utilities |
| [Lux Light Meter Pro](https://appshunter.io/ios/app/lux-light-meter-pro/id1292598866) | 3.9 (5,115) | Free | Utilities |
| [Libre Light Sensor](https://appshunter.io/ios/app/libre-light-sensor/id1644439968) | 4.8 (113) | Free | Utilities |
| [Lux Light Meter for Mobile](https://appshunter.io/ios/app/lux-light-meter-for-mobile/id1638732220) | 4.5 (229) | Free | Utilities |

## More apps by Marina Polyanskaya

- [dB Decibel Meter - sound level measurement tool](https://appshunter.io/ios/app/db-decibel-meter-sound-level-measurement-tool/id1048388627)
- [Audio spectrum analyzer EQ Rta](https://appshunter.io/ios/app/audio-spectrum-analyzer-eq-rta/id1122398778)
- [Octave Band Real Time Frequency Analyzer and Sound Level Meter](https://appshunter.io/ios/app/octave-band-real-time-frequency-analyzer-and-sound-level-meter/id1130237143)
- [Audio Spectrum Analyzer dB RTA](https://appshunter.io/ios/app/audio-spectrum-analyzer-db-rta/id1281873790)
- [Lux Light Meter Pro](https://appshunter.io/ios/app/lux-light-meter-pro/id1292598866)

All apps by Marina Polyanskaya: https://appshunter.io/developer/1519482916

## Related topics

[candle light foot](https://appshunter.io/ios/topics/candle-light-foot) · [foot candle](https://appshunter.io/ios/topics/foot-candle) · [foot candle meter](https://appshunter.io/ios/topics/foot-candle-meter) · [light meter foot candles](https://appshunter.io/ios/topics/light-meter-foot-candles) · [foot candle light meter](https://appshunter.io/ios/topics/foot-candle-light-meter) · [luminosys light meter](https://appshunter.io/ios/topics/luminosys-light-meter)

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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 2026-08-25.*