Comparison

Light Meter vs Luminometer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Light Meter

This application acts as a portable light meter, allowing users to measure light intensity in lux and foot candles. It offers real-time readings, a log library for saving measurements, and the ability to calibrate with professional devices for enhanced accuracy. The app supports both front and rear cameras and saves scene images.

Highlights
  • Real-time light intensity measurement
  • Lux and foot candle readings
  • Saveable log library
  • Calibration with professional illuminometer
  • Front and rear camera support
  • Scene image saving
Features
Read full description

Light Meter - Lux and foot candle measurement tool in your pocket! Light Meter for Film Photography. Light meter in your pocket! The only app you really need to measure light intensity. You can calibrated with professional Illuminometer. Features: - Exclusive simplicity and convenience of use with unique and attractive design. - Real-time measurements. - Result are save-able into log library. - All result are comparable with Variable Lux, foot candle, ISO and Date in log library. - Scene Image are save-able into camera-roll - Front and rear camera supported. - Lux and foot candle measurement. - Option to Calibrated with light sensitivity. To ensure the accuracy of measurements. you can calibrated with professional high-precision illuminometer. Note : Light Meter app is not a replacement for a professional device and should be used for private purposes only. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

Luminometer

Transform your device into a professional light meter to measure luminosity in lux and foot-candles. Achieve optimal illumination for any space, from greenhouses to workspaces, ensuring comfort and preventing glare. Calibrated with reference equipment for precise and reliable readings.

Highlights
  • Measures lux and foot-candle units
  • Internal Exposure Compensation for accuracy
  • Camera view for measured area
  • Calibrated with reference equipment
  • Versatile for various lighting conditions
  • Helps set optimal illumination levels
Features
Read full description

Luminometer is an exceptional app that is designed to transform your iPhone or iPad into a professional and user-friendly light meter. It is based on Internal Exposure Compensation, which makes it the most accurate lux meter available on the market today. With Luminometer, you can easily measure the lux of any light source in both lx and foot-candle units without having to spend any money on professional equipment. One of the standout features of Luminometer is the ability to swiftly and efficiently set up your greenhouse, living room, workplace, study room, or any other area with the perfect level of illumination. Our app ensures that you achieve a well-lit environment that is comfortable to work in without causing any unnecessary glare. The app is incredibly versatile, making it consistent for use in various lighting conditions such as plant lighting, household lighting, workstation lighting, and mood lighting. No matter the type of lighting you need to measure, Luminometer is up to the task. With Luminometer, you get a comprehensive set of features that enable you to measure lux with ease. The camera view feature allows you to view the area being measured, making it even more user-friendly. The app is calibrated using top reference equipment, ensuring that your measurements are always precise and reliable. Whether you're dealing with ambient indoor and outdoor lighting or task and accent lighting, Luminometer has you covered. You can trust that our app is accurate and reliable, thanks to our calibration process, which is done using the best reference equipment available. In conclusion, if you're looking for an accurate, versatile, and easy-to-use light meter app, then Luminometer is the perfect solution for you. Get started today and experience the benefits of using our app to achieve the perfect level of illumination for any environment. Terms and pricing: Our weekly subscription costs $3.99 USD/week and provides you with unlimited access to premium features, as long as your subscription remains active. The subscription automatically renews, and payment will be charged to your iTunes account when you confirm the initial purchase. If you do not wish to renew your subscription, you may turn off the auto-renewal option in your Account Settings at least 24-hours before the current subscription period ends. For more information, please refer to our terms of service available at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ or privacy policy on https://27groupts.notion.site/Privacy-Policy-for-Luminometer-iOS-App-68f7e665c2924108a9111eae825e53c7

Screenshots

Light Meter4 screens
Luminometer3 screens

Verdict

The call

The clearest difference is review sentiment: Light Meter at 50% against Luminometer's 0%. Light Meter also leads on rating (4.2 vs 3.5) and in-app purchases (none vs 2). Luminometer's advantage is price (Free vs $2.99) and update cadence (every 2 months vs every 48 months). On device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Luminometer is free to download; Light Meter costs $2.99 up front. Luminometer sells 2 in-app purchases, starting at $2.99 per 7 days. Light Meter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Light Meter holds the better App Store score, 4.2 against 3.5. Both are backed by a comparable volume of ratings — 5 and 16 respectively. Written reviews point the same way: 50% of Light Meter's written reviews are positive against 0% of Luminometer's.

UpkeepUpdate frequency

Light Meter ships an update every 48 months, Luminometer every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard9 real differences · 1 level
Light Meter versus Luminometer: the parameters behind the verdict, then further details
ParameterLight MeterLuminometer
Price$2.99Free — better
Rating4.2 (5 ratings) — better3.5 (16 ratings)
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings516 — better
Update frequencyEvery 48 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13 — better16.6
Further details — not scored
Size1 MB14 MB
Age rating4+4+
DeveloperNitrio27GROUP

Customer experience

Light Meter

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Luminometer

All ratings13 ratings
Positive69.2%
Neutral7.7%
Negative23.1%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Light Meter

No in-app purchases

2 purchases

Luminometer

Subscriptions1
  • Weekly$2.997 Days
One-time1
  • Lifetime$9.99

Questions

Is Light Meter free?
Light Meter costs $2.99, with no in-app purchases.
Is Luminometer free?
Luminometer is free to download, with in-app purchases available.
Which has better reviews, Light Meter or Luminometer?
Light Meter is rated higher. Light Meter averages 4.2 out of 5 from 5 ratings, while Luminometer averages 3.5 from 16 ratings.
Do Light Meter or Luminometer have ads?
Luminometer shows ads; Light Meter does not.
Which is updated more often, Light Meter or Luminometer?
Light Meter ships an update every 48 months, and Luminometer every 2 months. Most recently, Light Meter was updated on November 2, 2026 and Luminometer on November 3, 2026.

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