# Hidden Button vs O vs X Duel

The clearest difference is update cadence: O vs X Duel at weekly against Hidden Button's every 31 months. Hidden Button's advantage is iOS requirement (10.0 vs 13.0). 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.

Hidden Button ships an update every 31 months, O vs X Duel weekly. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Hidden Button | O vs X Duel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 31 months | **Weekly** |
| Size | 18 MB | 115 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Yimiao Information Technology Co., Ltd.](https://appshunter.io/developer/1619477257) | [Cheng-Kai Wu](https://appshunter.io/developer/1824246427) |

## What reviewers say

### Hidden Button

[App page](https://appshunter.io/ios/app/hidden-button/id1621264420)

**Features:** macOS Compatibility

**In-app purchases:** none


### O vs X Duel

[App page](https://appshunter.io/ios/app/o-vs-x-duel/id6748151029)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hidden Button free?

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

### Is O vs X Duel free?

O vs X Duel is free to download, with no in-app purchases.

### Do Hidden Button or O vs X Duel have ads?

Both Hidden Button and O vs X Duel show ads.

### Which is updated more often, Hidden Button or O vs X Duel?

Hidden Button ships an update every 31 months, and O vs X Duel weekly. Most recently, Hidden Button was updated on October 4, 2026 and O vs X Duel on October 15, 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.*