# Gun Builder Custom Guns vs Gun Simulator 3D

Gun Builder Custom Guns and Gun Simulator 3D both sit at 4.5 stars, but that hides the real split: 66% of Gun Builder Custom Guns's written reviews are positive against 23% of Gun Simulator 3D's. Gun Simulator 3D's advantage is in-app purchases (none vs 1) and update cadence (every 4 days vs every 5 weeks). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. Gun Builder Custom Guns sells 1 one-off in-app purchase. Gun Simulator 3D asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Gun Builder Custom Guns against 4.4 for Gun Simulator 3D. That said, the two scores are not equally well evidenced: Gun Simulator 3D has 10K ratings behind it against 1.7K, so its average is the more settled of the two. Written reviews are what separate them: 66% of Gun Builder Custom Guns's written reviews are positive against 23% of Gun Simulator 3D's.

Gun Builder Custom Guns ships an update every 5 weeks, Gun Simulator 3D every 4 days. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Gun Builder Custom Guns | Gun Simulator 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.7K ratings)](https://appshunter.io/ios/app/gun-builder-custom-guns/id1074243262/reviews)** | [4.4 (10K ratings)](https://appshunter.io/ios/app/gun-simulator-3d/id1540483509/reviews) |
| Number of ratings | 1.7K | **10K** |
| Positive reviews | **65.6% of reviews** | 22.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 150 MB | 390 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Gravity Code](https://appshunter.io/developer/1554824125) | [Rollic Games](https://appshunter.io/developer/1452111779) |

## What reviewers say

### Gun Builder Custom Guns

[App page](https://appshunter.io/ios/app/gun-builder-custom-guns/id1074243262)

Design and build your own unique virtual pistols with a vast selection of parts. Once created, you can fire your custom weapons with unlimited ammo and realistic sound and visual effects.

**Highlights:** Build custom pistols, Huge selection of pistol parts, Shoot from custom pistols, Unlimited ammo, Realistic gun sound effects, High resolution graphics, Share custom pistols on social media

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All | $5.99 | one-time |

**What reviewers like**

- 🚀 Good game to pass the time
- 👍 Realistic
- 👍 Customization options
- 👍 Enjoyable

**What reviewers complain about**

- 🐛 Shooting issues
- 🐛 Lack of weapon variety
- 🐛 Frequent ads
- 💰 Paid content locked

**Reported bugs**

- Sound issues
- Crashes and freezes
- Paid content not working as expected

**Requested features**

- Add more weapon types (AR, sniper, SMG, grenades)
- Improve shooting mechanics
- Reduce ads or make them optional
- Unlock more content for free


### Gun Simulator 3D

[App page](https://appshunter.io/ios/app/gun-simulator-3d/id1540483509)

Experience realistic shooting with a variety of guns. Compete against others, collect new weapons, and travel the globe to hit your targets in this thrilling challenge.

**Highlights:** Reload your gun, Race with participants, Claim new guns from shop, Travel and shoot targets, Big challenge mode

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Fun gameplay
- 👍 Detailed weapon models
- 🎯 Helps improve shooting skills

**What reviewers complain about**

- 🤖 Unrealistic gun mechanics
- 💥 Too many ads
- 🐛 Frequent freezing and crashes
- ⏱️ Short gameplay with long ads

**Reported bugs**

- Freezing during ads
- Disappearing targets
- Inability to collect guns and coins

**Requested features**

- Option to disable ads
- More gameplay variety and challenges
- Improved realism in gun mechanics
- Female character representation


## Frequently asked questions

### Is Gun Builder Custom Guns free?

Gun Builder Custom Guns is free to download, with in-app purchases available.

### Is Gun Simulator 3D free?

Gun Simulator 3D is free to download, with no in-app purchases.

### Which has better reviews, Gun Builder Custom Guns or Gun Simulator 3D?

Gun Builder Custom Guns is rated higher. Gun Builder Custom Guns averages 4.5 out of 5 from 1.7K ratings, while Gun Simulator 3D averages 4.4 from 10K ratings.

### Do Gun Builder Custom Guns or Gun Simulator 3D have ads?

Both Gun Builder Custom Guns and Gun Simulator 3D show ads.

### Which is updated more often, Gun Builder Custom Guns or Gun Simulator 3D?

Gun Builder Custom Guns ships an update every 5 weeks, and Gun Simulator 3D every 4 days. Most recently, Gun Builder Custom Guns was updated on November 1, 2026 and Gun Simulator 3D on October 29, 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.*