# FlickerSpec vs SOS Flashlight & Colors

The clearest difference is update cadence: FlickerSpec at every 4 weeks against SOS Flashlight & Colors's every 4 months. SOS Flashlight & Colors's advantage is iOS requirement (17.0 vs 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 SOS Flashlight & Colors sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

FlickerSpec ships an update every 4 weeks, SOS Flashlight & Colors every 4 months. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | FlickerSpec | SOS Flashlight & Colors |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Size | 12 MB | 2 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Corey Thomas Slick](https://appshunter.io/developer/1818871667) | [兵盾 杨](https://appshunter.io/developer/1871962400) |

## 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 |


### SOS Flashlight & Colors

[App page](https://appshunter.io/ios/app/sos-flashlight-and-colors/id6774115383)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁全部颜色 | $0.99 | one-time |
| 彩虹跑马灯模式 | $1.99 | one-time |


## Frequently asked questions

### Is FlickerSpec free?

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

### Is SOS Flashlight & Colors free?

SOS Flashlight & Colors is free to download, with in-app purchases available.

### Do FlickerSpec or SOS Flashlight & Colors have ads?

Neither FlickerSpec nor SOS Flashlight & Colors shows ads.

### Which is updated more often, FlickerSpec or SOS Flashlight & Colors?

FlickerSpec ships an update every 4 weeks, and SOS Flashlight & Colors every 4 months. Most recently, FlickerSpec was updated on October 29, 2026 and SOS Flashlight & Colors on October 28, 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.*