# Light Teller vs Maxtek Smart Calculator

The clearest difference is in-app purchases: Maxtek Smart Calculator at none against Light Teller's 2. Maxtek Smart Calculator also leads on update cadence (every 8 days vs every 5 months) and iOS requirement (14.0 vs 16.1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Light Teller sells 2 one-off in-app purchases. Maxtek Smart Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Light Teller against 5.0 for Maxtek Smart Calculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Light Teller ships an update every 5 months, Maxtek Smart Calculator every 8 days. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Light Teller | Maxtek Smart Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/light-teller/id6450953060/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/maxtek-smart-calculator/id6535658380/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 8 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1 MB | 24 MB |
| Requires iOS | 16.1 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [佳佳 陶](https://appshunter.io/developer/1682189695) | [Maxtek](https://appshunter.io/developer/1570100044) |

## What reviewers say

### Light Teller

[App page](https://appshunter.io/ios/app/light-teller/id6450953060)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Months Access | $1.99 | one-time |
| 1 Year Access | $4.99 | one-time |


### Maxtek Smart Calculator

[App page](https://appshunter.io/ios/app/maxtek-smart-calculator/id6535658380)

Calculates the optimal number of light bulbs required for a room using sensor data and an advanced formula. Helps determine the perfect lighting setup.

**Highlights:** Sensor-based calculation, Advanced formula, Optimal bulb quantity, Room lighting optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Light Teller free?

Light Teller is free to download, with in-app purchases available.

### Is Maxtek Smart Calculator free?

Maxtek Smart Calculator is free to download, with no in-app purchases.

### Which has better reviews, Light Teller or Maxtek Smart Calculator?

Light Teller and Maxtek Smart Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Light Teller or Maxtek Smart Calculator have ads?

Neither Light Teller nor Maxtek Smart Calculator shows ads.

### Which is updated more often, Light Teller or Maxtek Smart Calculator?

Light Teller ships an update every 5 months, and Maxtek Smart Calculator every 8 days. Most recently, Light Teller was updated on September 20, 2026 and Maxtek Smart Calculator on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*