# Underground Crew 2 Drag Racing vs Zero One Protocol

The clearest difference is in-app purchases: Underground Crew 2 Drag Racing at none against Zero One Protocol's 1. Underground Crew 2 Drag Racing also leads on iOS requirement (11.0 vs 15.0). Zero One Protocol's advantage is update cadence (every 9 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. Zero One Protocol sells 1 one-off in-app purchase. Underground Crew 2 Drag Racing asks for nothing beyond the download.

Underground Crew 2 Drag Racing ships an update every 8 months, Zero One Protocol every 9 days. The most recent releases landed on September 21, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Underground Crew 2 Drag Racing | Zero One Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/underground-crew-2-drag-racing/id1668453440/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 9 days** |
| Monetization | Ad-supported | — |
| Size | 562 MB | 795 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Syed Waqas Ali](https://appshunter.io/developer/1440741644) | [Yes2Games](https://appshunter.io/developer/1842238221) |

## What reviewers say

### Underground Crew 2 Drag Racing

[App page](https://appshunter.io/ios/app/underground-crew-2-drag-racing/id1668453440)

Experience high-speed drag racing with nitro boosts and gear timing. Drive over 15 luxury cars, customize them, and compete against rivals and police in various London districts. Become the top racer by winning races and climbing the global leaderboard.

**Highlights:** Expert gear timing and nitro boosts, Drive 15+ luxury cars, Extensive car customization options, Compete in online multiplayer races, Race against criminal overlords, Police chase game modes, Realistic car physics

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

**In-app purchases:** none


### Zero One Protocol

[App page](https://appshunter.io/ios/app/zero-one-protocol-logic/id6754828013)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game Unlock | $0.99 | one-time |


## Frequently asked questions

### Is Underground Crew 2 Drag Racing free?

Underground Crew 2 Drag Racing is free to download, with no in-app purchases.

### Is Zero One Protocol free?

Zero One Protocol is free to download, with in-app purchases available.

### Do Underground Crew 2 Drag Racing or Zero One Protocol have ads?

Both Underground Crew 2 Drag Racing and Zero One Protocol show ads.

### Which is updated more often, Underground Crew 2 Drag Racing or Zero One Protocol?

Underground Crew 2 Drag Racing ships an update every 8 months, and Zero One Protocol every 9 days. Most recently, Underground Crew 2 Drag Racing was updated on September 21, 2026 and Zero One Protocol on October 5, 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.*