# Sub Zero vs Boom Karts Multiplayer Racing

The clearest difference is price: Boom Karts Multiplayer Racing at Free against Sub Zero's $0.99. Boom Karts Multiplayer Racing also leads on update cadence (every 6 weeks vs every 24 months). Sub Zero's advantage is in-app purchases (none vs 17) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Boom Karts Multiplayer Racing is free to download; Sub Zero costs $0.99 up front. Boom Karts Multiplayer Racing sells 17 one-off in-app purchases. Sub Zero asks for nothing beyond the download.

Sub Zero ships an update every 24 months, Boom Karts Multiplayer Racing every 6 weeks. The most recent releases landed on October 3, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Sub Zero | Boom Karts Multiplayer Racing |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.6 (867 ratings)](https://appshunter.io/ios/app/boom-karts-multiplayer-racing/id1553445732/reviews)** |
| Number of ratings | — | **867** |
| Positive reviews | — | 40.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 566 MB |
| Requires iOS | 13.6 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Software101](https://appshunter.io/developer/381972019) | [Zaibatsu Interactive](https://appshunter.io/developer/947001379) |

## What reviewers say

### Sub Zero

[App page](https://appshunter.io/ios/app/sub-zero/id1070265241)

**Features:** macOS Compatibility, Game Controller support

**In-app purchases:** none


### Boom Karts Multiplayer Racing

[App page](https://appshunter.io/ios/app/boom-karts-multiplayer-racing/id1553445732)

Compete in fast-paced, real-time arcade kart races against players worldwide. Master drifting and boost mechanics, utilize crazy power-ups to hinder opponents, and customize your kart and avatar. Form teams with friends for custom races and unlock new karts and upgrades.

**Highlights:** Real-time online multiplayer races, Drifting and nitro boost mechanics, Arsenal of power-ups and weapons, Team creation and management, Customizable karts and avatars, Kart blueprint collection and upgrades

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pile of Gems | $1.99 | one-time |
| Starter Bundle | $2.99 | one-time |
| Box of Gems | $4.99 | one-time |
| Odyssey Bundle | $4.99 | one-time |
| Unicorn Bundle | $4.99 | one-time |
| Gem Stash | $4.99 | one-time |
| Boom Pass Discount | $5.99 | one-time |
| Boom Pass | $6.99 | one-time |
| The Silver Driver | $7.99 | one-time |
| Mound of Gems | $9.99 | one-time |
| Boom Pass +10 | $9.99 | one-time |
| Boom Burger Bundle | $9.99 | one-time |
| The Gold Racer | $12.99 | one-time |
| The Master Challenger | $14.99 | one-time |
| Container of Gems | $19.99 | one-time |
| The Legendary Elite | $19.99 | one-time |
| Gem Ship | $99.99 | one-time |

**What reviewers like**

- 🚀 Well-rounded game
- 👍 Fun racing game
- 👍 Enjoyable gameplay
- 👍 Potential to be one of the best kart games

**What reviewers complain about**

- 🐛 Buggy and glitchy
- 🐛 Laggy gameplay
- 🐛 Matchmaking and server issues
- 🔒 Pay-to-win mechanics
- 🐛 Unbalanced gameplay and unfair power-ups

**Reported bugs**

- Adventure mode not working
- Space mode not working
- Rewards and chests not functioning properly
- Accounts being hacked or banned for no reason
- Invisible obstacles and power-ups

**Requested features**

- Add leagues and rankings
- Improve progression and unlock system
- Reduce reliance on power-ups and focus more on driving skills
- Improve server stability and matchmaking
- Add more tracks and content updates


## Frequently asked questions

### Is Sub Zero free?

Sub Zero costs $0.99, with no in-app purchases.

### Is Boom Karts Multiplayer Racing free?

Boom Karts Multiplayer Racing is free to download, with in-app purchases available.

### Do Sub Zero or Boom Karts Multiplayer Racing have ads?

Boom Karts Multiplayer Racing shows ads; Sub Zero does not.

### Which is updated more often, Sub Zero or Boom Karts Multiplayer Racing?

Sub Zero ships an update every 24 months, and Boom Karts Multiplayer Racing every 6 weeks. Most recently, Sub Zero was updated on October 3, 2026 and Boom Karts Multiplayer Racing on October 18, 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.*