Comparison

Light Meter 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

Light Meter

This app functions as a precise and user-friendly light meter using your phone's built-in sensors. It measures illuminance, color temperature, PPFD/PAR, DLI, and luminous flux in real-time. It also includes a calculator for various illumination parameters and allows sharing or saving of measurements.

Highlights
  • Real-time illuminance measurement
  • Color temperature measurement
  • PPFD/PAR and DLI calculation
  • Built-in illumination calculator
  • Share and save measurements
  • No additional equipment needed
Read full description

Lux-525 Pro – universal, highly-precise, and easy to use light meter. - Requires no additional equipment, everything you need is already in your phone - Calibrated with professional light meter - Smart algorithm provides unsurpassed accuracy in all conditions - Real-time measurements of illuminance, color temperature, PPFD/PAR, DLI and luminous flux - Large collection of light sources necessary for accurate calculation of PPFD/PAR and DLI - Built-in calculator for convenient and precise calculation of various illumination parameters (PPFD, DLI, Lux, Fc, Lumens) - Share your measurements via a text message or email or save them to your phone Lux-525 Pro is the best-in-class digital light meter on the phone. It is intended for personal use and may not fully replace industrial-grade light meters. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://n17dev.web.app/light-meter/policy.html

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

Light Meter4 screens
Light Teller3 screens

Verdict

The call

The clearest difference is rating: Light Teller at 5.0 against Light Meter's 4.5. Light Teller also leads on update cadence (every 5 months vs every 10 months). Light Meter's advantage is ratings volume (116 vs 1). On price, ads, in-app purchases and monetization model 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 Meter sells 4 in-app purchases, starting at $3.99 per month and Light Teller sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Light Teller holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Light Meter has 116 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Light Meter ships an update every 10 months, Light Teller every 5 months. Both last shipped on November 3, 2026.

Scorecard3 real differences · 7 level
Light Meter versus Light Teller: the parameters behind the verdict, then further details
ParameterLight MeterLight Teller
PriceFreeFree
Rating4.5 (116 ratings)5.0 (1 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings116 — better1
Update frequencyEvery 10 monthsEvery 5 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better16.1
Further details — not scored
Size17 MB1 MB
Age rating4+4+
DeveloperAndrey Ivankin佳佳 陶

Customer experience

Light Meter

All ratings116 ratings
Positive87.9%
Neutral2.6%
Negative9.5%
Written reviews9 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Light Teller

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

In-app purchases

4 purchases

Light Meter

Subscriptions2
  • Premium Monthly Subscription3 Days trial$3.991 Month
  • Premium Monthly Subscription3 Days trial$4.991 Month
One-time2
  • Premium Lifetime Subscription$19.99
  • Premium Lifetime Subscription$29.99
2 purchases

Light Teller

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

Questions

Is Light Meter free?
Light Meter is free to download, with in-app purchases available.
Is Light Teller free?
Light Teller is free to download, with in-app purchases available.
Which has better reviews, Light Meter or Light Teller?
Light Teller is rated higher. Light Meter averages 4.5 out of 5 from 116 ratings, while Light Teller averages 5.0 from 1 ratings.
Do Light Meter or Light Teller have ads?
Neither Light Meter nor Light Teller shows ads.
Which is updated more often, Light Meter or Light Teller?
Light Meter ships an update every 10 months, and Light Teller every 5 months. Most recently, Light Meter was updated on November 3, 2026 and Light Teller on November 3, 2026.

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