# Light Teller vs AI Voice GPT

The clearest difference is price: Light Teller at Free against AI Voice GPT's $2.99. AI Voice GPT's advantage is in-app purchases (none vs 2) and update cadence (weekly vs every 5 months). On ads and device support there is nothing between them.

Light Teller is free to download; AI Voice GPT costs $2.99 up front. Light Teller sells 2 one-off in-app purchases. AI Voice GPT asks for nothing beyond the download.

Light Teller ships an update every 5 months, AI Voice GPT weekly. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Light Teller | AI Voice GPT |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| 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 | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 106 MB |
| Requires iOS | 16.1 | **14.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [佳佳 陶](https://appshunter.io/developer/1682189695) | [SCORPIOX, INC LIMITED](https://appshunter.io/developer/1617922281) |

## 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 |


### AI Voice GPT

[App page](https://appshunter.io/ios/app/ai-voice-gpt/id6504446965)

**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 AI Voice GPT free?

AI Voice GPT costs $2.99, with no in-app purchases.

### Do Light Teller or AI Voice GPT have ads?

Neither Light Teller nor AI Voice GPT shows ads.

### Which is updated more often, Light Teller or AI Voice GPT?

Light Teller ships an update every 5 months, and AI Voice GPT weekly. Most recently, Light Teller was updated on November 3, 2026 and AI Voice GPT on October 25, 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.*