# USB Simulator 2015 vs Stupid Zombies 4

The clearest difference is rating: Stupid Zombies 4 at 4.6 against USB Simulator 2015's 3.3. Stupid Zombies 4 also leads on update cadence (every 2 months vs every 11 months) and ratings volume (2.8K vs 50). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. USB Simulator 2015 sells 2 one-off in-app purchases and Stupid Zombies 4 sells 10 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Stupid Zombies 4 holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: Stupid Zombies 4 has 2.8K ratings behind it against 50, so its average is the more settled of the two. Written reviews point the same way: 37% of USB Simulator 2015's written reviews are positive against 57% of Stupid Zombies 4's.

USB Simulator 2015 ships an update every 11 months, Stupid Zombies 4 every 2 months. The most recent releases landed on November 1, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | USB Simulator 2015 | Stupid Zombies 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (50 ratings)](https://appshunter.io/ios/app/usb-simulator-2015/id955579995/reviews) | **[4.6 (2.8K ratings)](https://appshunter.io/ios/app/stupid-zombies-4/id1494056201/reviews)** |
| Number of ratings | 50 | **2.8K** |
| Positive reviews | 37.2% of reviews | **56.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 93 MB | 365 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Fluik](https://appshunter.io/developer/341885018) | [GameResort LLC](https://appshunter.io/developer/301101149) |

## What reviewers say

### USB Simulator 2015

[App page](https://appshunter.io/ios/app/usb-simulator-2015/id955579995)

Experience the frustratingly familiar challenge of inserting a USB stick. Test your patience and dexterity to master this common task. Compete with friends for high scores and achievements in this unique simulation game.

**Highlights:** Master USB insertion, Patience and dexterity challenge, Compete for high scores, Unlock achievements, Challenge friends

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold USB | $0.99 | one-time |
| No Ads | $0.99 | one-time |


### Stupid Zombies 4

[App page](https://appshunter.io/ios/app/stupid-zombies-4/id1494056201)

Bounce bullets off walls to eliminate all zombies in increasingly challenging levels. Unlock new heroes with collected coins and explore different weapons through various missions. Engage in VIP mode for bonus rewards and enhanced gameplay.

**Highlights:** Ricochet bullets off walls, Eliminate all zombies per level, Unlock new heroes with coins, Variety of missions and weapons, VIP mode for bonus rewards

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Club Monthly | $5.99 | per month |
| Head Start Bundle | $1.99 | one-time |
| Bolly Bundle | $1.99 | one-time |
| Lucha Libre Bundle | $1.99 | one-time |
| Cyber Bundle | $3.99 | one-time |
| Mumbai Bundle | $3.99 | one-time |
| Mariachi Bundle | $3.99 | one-time |
| Pile of Currency | $4.99 | one-time |
| Trove of Currency | $9.99 | one-time |
| Ton of Currency | $19.99 | one-time |

**What reviewers like**

- 👍 Great graphics
- 🚀 Smooth controls
- 💡 New game modes
- 👍 Familiar gameplay
- 👍 Enjoyable experience

**What reviewers complain about**

- 🔍 Too many ads
- 🔍 Unskippable ads
- 🔍 Ads interrupt gameplay
- 🔍 Subscription required to remove ads
- 🔍 Levels become too difficult

**Reported bugs**

- Crashes on some devices
- Compatibility issues with older devices

**Requested features**

- More levels
- Ad-free option
- Different weapon types for heroes
- Landscape mode
- Improved ragdoll physics


## Frequently asked questions

### Is USB Simulator 2015 free?

USB Simulator 2015 is free to download, with in-app purchases available.

### Is Stupid Zombies 4 free?

Stupid Zombies 4 is free to download, with in-app purchases available.

### Which has better reviews, USB Simulator 2015 or Stupid Zombies 4?

Stupid Zombies 4 is rated higher. USB Simulator 2015 averages 3.3 out of 5 from 50 ratings, while Stupid Zombies 4 averages 4.6 from 2.8K ratings.

### Do USB Simulator 2015 or Stupid Zombies 4 have ads?

Both USB Simulator 2015 and Stupid Zombies 4 show ads.

### Which is updated more often, USB Simulator 2015 or Stupid Zombies 4?

USB Simulator 2015 ships an update every 11 months, and Stupid Zombies 4 every 2 months. Most recently, USB Simulator 2015 was updated on November 1, 2026 and Stupid Zombies 4 on November 10, 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.*