Comparison

Lux vs Luminometer

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

Head to head
About

Lux

Features
Read full description

"LuxMeter can control functions like recording, reading, deleting through Bluetooth connection, and draw up the curve of parameters like Illuminance so that the user can intuitively detect the parameters' trend.

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

Lux4 screens
Luminometer3 screens

Verdict

The call

The clearest difference is in-app purchases: Lux at none against Luminometer's 2. Lux also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price and 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

Both are free to download. Luminometer sells 2 in-app purchases, starting at $2.99 per 7 days. Lux asks for nothing beyond the download.

UpkeepUpdate frequency

Lux ships an update every 3 days, Luminometer every 2 months. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Lux versus Luminometer: the parameters behind the verdict, then further details
ParameterLuxLuminometer
PriceFreeFree
Rating—3.5 (16 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—16 — better
Update frequencyEvery 3 days — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better16.6
Further details — not scored
Size3 MB14 MB
Age rating4+4+
DeveloperShenzhen Jumaoyuan Science and Technology Co., Ltd.27GROUP

In-app purchases

None

Lux

No in-app purchases

2 purchases

Luminometer

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

Questions

Is Lux free?
Lux is free to download, with no in-app purchases.
Is Luminometer free?
Luminometer is free to download, with in-app purchases available.
Do Lux or Luminometer have ads?
Luminometer shows ads; Lux does not.
Which is updated more often, Lux or Luminometer?
Lux ships an update every 3 days, and Luminometer every 2 months. Most recently, Lux was updated on October 17, 2026 and Luminometer on October 24, 2026.

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