# OneFirewall AI vs Y Build

The clearest difference is in-app purchases: OneFirewall AI at none against Y Build's 4. OneFirewall AI also leads on ads (none vs shown) and iOS requirement (15.1 vs 17.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Y Build sells 4 in-app purchases, starting at $17.99 per month. OneFirewall AI asks for nothing beyond the download.

OneFirewall AI ships an update every 2 months, Y Build monthly. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | OneFirewall AI | Y Build |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Size | 21 MB | 51 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [OneFirewall Alliance Ltd](https://appshunter.io/developer/1618009042) | [Y Build LLC](https://appshunter.io/developer/1892930318) |

## What reviewers say

### OneFirewall AI

[App page](https://appshunter.io/ios/app/onefirewall-ai/id6761933187)

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

**In-app purchases:** none


### Y Build

[App page](https://appshunter.io/ios/app/y-build/id6762104265)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $17.99 | per month |
| Basic | $29.99 | per month |
| Pro | $69.99 | per month |
| Max | $189.99 | per month |


## Frequently asked questions

### Is OneFirewall AI free?

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

### Is Y Build free?

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

### Do OneFirewall AI or Y Build have ads?

Y Build shows ads; OneFirewall AI does not.

### Which is updated more often, OneFirewall AI or Y Build?

OneFirewall AI ships an update every 2 months, and Y Build monthly. Most recently, OneFirewall AI was updated on October 25, 2026 and Y Build 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.*