# FlickerSpec vs Pixel Mapper xModel

The clearest difference is in-app purchases: Pixel Mapper xModel at none against FlickerSpec's 1. Pixel Mapper xModel also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. FlickerSpec sells 1 one-off in-app purchase. Pixel Mapper xModel asks for nothing beyond the download.

## The numbers

| Metric | FlickerSpec | Pixel Mapper xModel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 12 MB | 23 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Corey Thomas Slick](https://appshunter.io/developer/1818871667) | [S&B Designs](https://appshunter.io/developer/6794725764) |

## What reviewers say

### FlickerSpec

[App page](https://appshunter.io/ios/app/flickerspec-led-flicker-test/id6759629660)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlickerSpec Pro | $49.99 | one-time |


### Pixel Mapper xModel

[App page](https://appshunter.io/ios/app/pixel-mapper-xmodel/id6794730279)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FlickerSpec free?

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

### Is Pixel Mapper xModel free?

Pixel Mapper xModel is free to download, with no in-app purchases.

### Do FlickerSpec or Pixel Mapper xModel have ads?

Neither FlickerSpec nor Pixel Mapper xModel 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.*