# 10 Sec Challenge vs StopTime

The clearest difference is ads: StopTime at none against 10 Sec Challenge's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 10 Sec Challenge | StopTime |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 5 days |
| Size | 33 MB | 130 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Yudai Nishikawa](https://appshunter.io/developer/1745960087) | [Arman Mkhitarian](https://appshunter.io/developer/1860912570) |

## What reviewers say

### 10 Sec Challenge

[App page](https://appshunter.io/ios/app/10-sec-challenge-surprisetimer/id6743366168)

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

**In-app purchases:** none


### StopTime

[App page](https://appshunter.io/ios/app/stoptime-timer-reaction-game/id6772400704)

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

**In-app purchases:** none


## Frequently asked questions

### Is 10 Sec Challenge free?

10 Sec Challenge is free to download, with no in-app purchases.

### Is StopTime free?

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

### Do 10 Sec Challenge or StopTime have ads?

10 Sec Challenge shows ads; StopTime 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.*