# FlickerSpec vs LumaCadence

The clearest difference is in-app purchases: LumaCadence at none against FlickerSpec's 1. LumaCadence also leads on iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | FlickerSpec | LumaCadence |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 12 MB | 1 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Corey Thomas Slick](https://appshunter.io/developer/1818871667) | [青林 刘](https://appshunter.io/developer/1831641473) |

## 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 |


### LumaCadence

[App page](https://appshunter.io/ios/app/lumacadence-light-flicker/id6817631199)

**In-app purchases:** none


## Frequently asked questions

### Is FlickerSpec free?

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

### Is LumaCadence free?

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

### Do FlickerSpec or LumaCadence have ads?

Neither FlickerSpec nor LumaCadence 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.*