# Dead Pixel Test vs Extension Changer

The clearest difference is in-app purchases: Extension Changer at none against Dead Pixel Test's 3. Extension Changer also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Dead Pixel Test sells 3 in-app purchases, starting at $1.99 per month. Extension Changer asks for nothing beyond the download.

## The numbers

| Metric | Dead Pixel Test | Extension Changer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dead-pixel-test-screen-check/id6760838375/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BULPARA TEKNOLOJI LIMITED SIRKETI](https://appshunter.io/developer/1552593177) | [SEFA ER](https://appshunter.io/developer/6775883510) |

## What reviewers say

### Dead Pixel Test

[App page](https://appshunter.io/ios/app/dead-pixel-test-screen-check/id6760838375)

Diagnose your device's screen for issues like dead pixels, burn-in, and touch response. Offers comprehensive tests and reports, with a Pro version for advanced features and pre-purchase inspections. Prioritizes user privacy with on-device processing.

**Highlights:** Dead pixel detection, Touch screen testing, OLED burn-in detection, Refresh rate and response time checks, Color accuracy and gamut testing, Screen uniformity analysis, Pixel fix tool

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Weekly | $1.99 | per 7 days |
| Premium Annual | $24.99 | per year |


### Extension Changer

[App page](https://appshunter.io/ios/app/extension-changer/id6808990995)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dead Pixel Test free?

Dead Pixel Test is free to download, with in-app purchases available.

### Is Extension Changer free?

Extension Changer is free to download, with no in-app purchases.

### Do Dead Pixel Test or Extension Changer have ads?

Dead Pixel Test shows ads; Extension Changer does not.

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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.*