# Mad UFO vs Zombie Infinity

The clearest difference is in-app purchases: Mad UFO at none against Zombie Infinity's 21. Zombie Infinity's advantage is ads (none vs shown) and update cadence (every 11 days vs every 9 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Zombie Infinity sells 21 one-off in-app purchases. Mad UFO asks for nothing beyond the download.

Mad UFO ships an update every 9 months, Zombie Infinity every 11 days. The most recent releases landed on October 8, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Mad UFO | Zombie Infinity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (127 ratings)](https://appshunter.io/ios/app/zombie-infinity/id6736433765/reviews)** |
| Number of ratings | — | **127** |
| Positive reviews | — | 82.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 24 MB | 742 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [PT. Agra Karya Digital](https://appshunter.io/developer/1018978318) | [kamasu.jp Inc.](https://appshunter.io/developer/581483326) |

## What reviewers say

### Mad UFO

[App page](https://appshunter.io/ios/app/mad-ufo/id1660929427)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zombie Infinity

[App page](https://appshunter.io/ios/app/zombie-infinity/id6736433765)

Embark on a solo journey through a zombie-infested city to locate other survivors. Battle swarms of dangerous creatures and overcome threats beyond just the undead to reach the end.

**Highlights:** One-handed gameplay, Defeat enemy hordes, Collect coins, Acquire rare gear, Combine over 100 items, Create ultimate setups

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

**In-app purchases (21)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Special Offer A | $0.99 | one-time |
| Special Offer B | $3.99 | one-time |
| 500 Gems | $3.99 | one-time |
| Special Offer C | $6.99 | one-time |
| Special Offer D | $9.99 | one-time |
| Featured Equipment A | $9.99 | one-time |
| Premium Pass | $9.99 | one-time |
| Value Item Pack A | $9.99 | one-time |
| Ad Skip Pass | $9.99 | one-time |
| Infinite Energy Pass | $9.99 | one-time |
| Special Offer E | $14.99 | one-time |
| Featured Equipment B | $14.99 | one-time |
| Featured Equipment C | $19.99 | one-time |
| 2800 Gems | $19.99 | one-time |
| Value Item Pack B | $19.99 | one-time |
| Featured Equipment D | $34.99 | one-time |
| Value Item Pack C | $39.99 | one-time |
| Special Offer I | $69.99 | one-time |
| Value Item Pack D | $69.99 | one-time |
| Special Offer J | $99.99 | one-time |
| Value Item Pack E | $99.99 | one-time |

**What reviewers like**

- 👍 Fun and entertaining
- 🚀 Fast-paced action
- ✨ Good graphics
- 👍 Highly recommended
- 🚫 No ads (mentioned by some)

**What reviewers complain about**

- 🐛 Freezing and crashing issues
- 📉 Slow progression/long wait times
- ❓ Lack of updates/events
- 💸 Requires too much purchase
- 🎛️ Cluttered interface/menus

**Reported bugs**

- Game freezes frequently
- Game crashes sometimes
- Login event not showing
- Cannot watch ads
- Premium pass not syncing across devices

**Requested features**

- Add more game modes
- Implement item level inheritance
- Allow resource refund for upgraded items
- Add offline resource collection
- Allow character appearance/trait changes


## Frequently asked questions

### Is Mad UFO free?

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

### Is Zombie Infinity free?

Zombie Infinity is free to download, with in-app purchases available.

### Do Mad UFO or Zombie Infinity have ads?

Mad UFO shows ads; Zombie Infinity does not.

### Which is updated more often, Mad UFO or Zombie Infinity?

Mad UFO ships an update every 9 months, and Zombie Infinity every 11 days. Most recently, Mad UFO was updated on October 8, 2026 and Zombie Infinity on October 20, 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.*