# Light Teller vs 极简二维码

The clearest difference is in-app purchases: 极简二维码 at none against Light Teller's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Light Teller sells 2 one-off in-app purchases. 极简二维码 asks for nothing beyond the download.

## The numbers

| Metric | Light Teller | 极简二维码 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/light-teller/id6450953060/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 1 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [佳佳 陶](https://appshunter.io/developer/1682189695) | [圣财 卢](https://appshunter.io/developer/1803211672) |

## 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 |


### 极简二维码

[App page](https://appshunter.io/ios/app/id6747414883)

**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 极简二维码 free?

极简二维码 is free to download, with no in-app purchases.

### Do Light Teller or 极简二维码 have ads?

Neither Light Teller nor 极简二维码 shows ads.

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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.*