# FlickerSpec vs FlickerCheck

The clearest difference is iOS requirement: FlickerCheck at 17.0 against FlickerSpec's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FlickerSpec sells 1 one-off in-app purchase and FlickerCheck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | FlickerSpec | FlickerCheck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | — |
| Size | 12 MB | 10 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Corey Thomas Slick](https://appshunter.io/developer/1818871667) | [biaopeng zhou](https://appshunter.io/developer/1895904365) |

## 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 |


### FlickerCheck

[App page](https://appshunter.io/ios/app/flickercheck-pwm-meter/id6804622251)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $4.99 | one-time |


## Frequently asked questions

### Is FlickerSpec free?

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

### Is FlickerCheck free?

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

### Do FlickerSpec or FlickerCheck have ads?

Neither FlickerSpec nor FlickerCheck 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.*