# Ten Second Challenge vs Perfect Circle OTG

The clearest difference is iOS requirement: Perfect Circle OTG at 13.0 against Ten Second Challenge's 16.0. On price, ads, in-app purchases and device support 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 | Ten Second Challenge | Perfect Circle OTG |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | — | Every 5 days |
| Size | 11 MB | 23 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Endless Innovations LLC](https://appshunter.io/developer/1805001830) | [Japality Limited](https://appshunter.io/developer/1574046707) |

## What reviewers say

### Ten Second Challenge

[App page](https://appshunter.io/ios/app/ten-second-challenge/id6749869194)

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

**In-app purchases:** none


### Perfect Circle OTG

[App page](https://appshunter.io/ios/app/perfect-circle-otg/id6752425506)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ten Second Challenge free?

Ten Second Challenge is free to download, with no in-app purchases.

### Is Perfect Circle OTG free?

Perfect Circle OTG is free to download, with no in-app purchases.

### Do Ten Second Challenge or Perfect Circle OTG have ads?

Both Ten Second Challenge and Perfect Circle OTG 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.*