# 10 Sec Challenge vs ZeroIn

The clearest difference is in-app purchases: 10 Sec Challenge at none against ZeroIn's 3. 10 Sec Challenge also leads on iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. ZeroIn sells 3 one-off in-app purchases. 10 Sec Challenge asks for nothing beyond the download.

## The numbers

| Metric | 10 Sec Challenge | ZeroIn |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 5 days |
| Size | 33 MB | 53 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Yudai Nishikawa](https://appshunter.io/developer/1745960087) | [Emre ALTUN](https://appshunter.io/developer/1852335131) |

## 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


### ZeroIn

[App page](https://appshunter.io/ios/app/zeroin-time-challenge/id6788565326)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Life Refill | $1.99 | one-time |
| Remove Ads | $3.99 | one-time |
| ZeroIn Pro | $9.99 | one-time |


## Frequently asked questions

### Is 10 Sec Challenge free?

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

### Is ZeroIn free?

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

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

Both 10 Sec Challenge and ZeroIn show 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.*