# O vs X Duel vs SynapTap

The clearest difference is iOS requirement: O vs X Duel at 13.0 against SynapTap's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | O vs X Duel | SynapTap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Weekly | Weekly |
| Size | 115 MB | 128 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cheng-Kai Wu](https://appshunter.io/developer/1824246427) | [Emirhan Gireniz](https://appshunter.io/developer/1753585493) |

## What reviewers say

### O vs X Duel

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

**Features:** macOS Compatibility

**In-app purchases:** none


### SynapTap

[App page](https://appshunter.io/ios/app/synaptap/id6793103401)

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

**In-app purchases:** none


## Frequently asked questions

### Is O vs X Duel free?

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

### Is SynapTap free?

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

### Do O vs X Duel or SynapTap have ads?

Both O vs X Duel and SynapTap show ads.

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

O vs X Duel ships an update weekly, and SynapTap weekly. Most recently, O vs X Duel was updated on October 15, 2026 and SynapTap on October 7, 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.*