Luxometer vs Light Teller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Ambient light intensity measurement (Lumens)
- Ambient color temperature measurement (Kelvin)
- Real-time data readouts
- Augmented reality visualizations
- Uses device's built-in hardware
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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.
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.
- Brightness testing with smartphone camera
- Light health guidance for parents
- Detailed user instructions
- Accurate and reliable measurements
- Educational articles on visual health
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"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
Verdict
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
Both are free to download. Light Teller sells 2 one-off in-app purchases. Luxometer asks for nothing beyond the download.
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.
Luxometer ships an update daily, Light Teller every 5 months. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.
| Parameter | Luxometer | Light Teller |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (8 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Daily — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 0 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Arias Software LLC | 佳佳 陶 |
Customer experience
Luxometer
Light Teller
In-app purchases
Luxometer
No in-app purchases
Light Teller
- 3 Months Access$1.99
- 1 Year Access$4.99









