Comparison

Luxometer vs Light Teller

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

Head to head
About

Luxometer

Measure ambient light intensity in Lumens and color temperature in Kelvin using your phone's built-in sensors. Point your device at a light source and see real-time readings, enhanced with augmented reality visualizations.

Highlights
  • Ambient light intensity measurement (Lumens)
  • Ambient color temperature measurement (Kelvin)
  • Real-time data readouts
  • Augmented reality visualizations
  • Uses device's built-in hardware
Features
Read full description

This app functions as a light detector right from the convenience of your phone! As the old saying goes, the best light detector is the one you have on you. Well now, you can have one on you for all your safety and light detection needs with the tap of a finger. App uses the built in hardware and light detection algorithms provided by the device to offer powerful ambient light intensity detection (in Lumens) as well as ambient color temperature(in Kelvin) measurements. Simply point device in direction of light source, toggle the Light Estimation switch, and see the real time read outs of the incoming data. As a nice visual, the app also integrates some of the latest advances in Augment Reality to render floating spheres that reflect the light qualities being detected by the app.

About

Light Teller

This app uses your smartphone camera to measure ambient light levels, helping parents ensure their children's study spaces have adequate lighting to protect their vision and reduce myopia risk. It offers clear instructions and educational content on light's impact on eye health.

Highlights
  • Brightness testing with smartphone camera
  • Light health guidance for parents
  • Detailed user instructions
  • Accurate and reliable measurements
  • Educational articles on visual health
Read full description

"Light Teller" is an intelligent application that utilizes the smartphone camera to test the brightness of the environment, helping parents determine whether the lighting in their children's study environment is sufficient. Specifically designed for parents with young children, we understand the importance of protecting their eyes during their developmental stages. Therefore, we pay special attention to the impact of lighting on daily eye health and strive to create an optimal learning environment that reduces the risk of myopia. The key advantage of "Light Teller" lies in providing detailed usage instructions and a reference for brightness, enabling you to easily understand and optimize your children's study environment. Key Features: 1. Brightness Testing: Utilize the smartphone camera to quickly and accurately measure the brightness level of the environment, providing reliable reference values for parents. 2. Light Health Guide: Provide parents with educational information about brightness, helping them create a comfortable learning environment for their children. 3. User Instructions: Clear and user-friendly interface and instructions enable parents to quickly get started, operate correctly, and interpret the results of brightness testing. Key Highlights: - Accurate and Reliable: Utilize advanced brightness measurement algorithms to ensure accurate and reliable test results. - Simple and User-Friendly: Designed with a user-friendly interface, allowing you to easily conduct brightness testing without requiring specialized knowledge or equipment. - Illuminating Knowledge: Offer a rich collection of educational articles to deepen parents' understanding of the importance of light and its impact on visual health.(TBD) Whether you are prioritizing your children's eye health or seeking a deeper understanding of the importance of light, "Light Teller" is the ideal choice for you. Please note: This application solely provides brightness testing and educational knowledge sharing. It does not diagnose any environment or offer medical advice.

Screenshots

Luxometer3 screens
Light Teller3 screens

Verdict

The call

The clearest difference is rating: Light Teller at 5.0 against Luxometer's 4.0. Luxometer's advantage is in-app purchases (none vs 2) and update cadence (daily vs every 5 months). On price, ads 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. Light Teller sells 2 one-off in-app purchases. Luxometer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Light Teller holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Luxometer has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Luxometer ships an update daily, Light Teller every 5 months. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

Scorecard6 real differences · 4 level
Luxometer versus Light Teller: the parameters behind the verdict, then further details
ParameterLuxometerLight Teller
PriceFreeFree
Rating4.0 (8 ratings)5.0 (1 ratings) — better
Positive reviews60.0% of reviews—
Number of ratings8 — better1
Update frequencyDaily — betterEvery 5 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.1
Further details — not scored
Size0 MB1 MB
Age rating4+4+
DeveloperArias Software LLC佳佳 陶

Customer experience

Luxometer

All ratings8 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Light Teller

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Luxometer

No in-app purchases

2 purchases

Light Teller

One-time2
  • 3 Months Access$1.99
  • 1 Year Access$4.99

Questions

Is Luxometer free?
Luxometer is free to download, with no in-app purchases.
Is Light Teller free?
Light Teller is free to download, with in-app purchases available.
Which has better reviews, Luxometer or Light Teller?
Light Teller is rated higher. Luxometer averages 4.0 out of 5 from 8 ratings, while Light Teller averages 5.0 from 1 ratings.
Do Luxometer or Light Teller have ads?
Neither Luxometer nor Light Teller shows ads.
Which is updated more often, Luxometer or Light Teller?
Luxometer ships an update daily, and Light Teller every 5 months. Most recently, Luxometer was updated on September 8, 2026 and Light Teller on September 20, 2026.

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