# Gun Builder Custom Guns vs Custom Gun Simulator 3D

The clearest difference is update cadence: Gun Builder Custom Guns at every 5 weeks against Custom Gun Simulator 3D's every 6 months. Custom Gun Simulator 3D's advantage is review sentiment (83% vs 66%) and monetization model (ad-supported vs free with in-app purchases). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Gun Builder Custom Guns sells 1 one-off in-app purchase and Custom Gun Simulator 3D sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Gun Builder Custom Guns against 4.7 for Custom Gun Simulator 3D. Both are backed by a comparable volume of ratings — 1.7K and 1.2K respectively. Written reviews are what separate them: 66% of Gun Builder Custom Guns's written reviews are positive against 83% of Custom Gun Simulator 3D's.

Gun Builder Custom Guns ships an update every 5 weeks, Custom Gun Simulator 3D every 6 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | Gun Builder Custom Guns | Custom Gun Simulator 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (1.7K ratings)](https://appshunter.io/ios/app/gun-builder-custom-guns/id1074243262/reviews) | **[4.7 (1.2K ratings)](https://appshunter.io/ios/app/custom-gun-simulator-3d/id1375862583/reviews)** |
| Number of ratings | **1.7K** | 1.2K |
| Positive reviews | 65.6% of reviews | **83.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 150 MB | 155 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Gravity Code](https://appshunter.io/developer/1554824125) | [Marijana Peric](https://appshunter.io/developer/1711240603) |

## 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


### Custom Gun Simulator 3D

[App page](https://appshunter.io/ios/app/custom-gun-simulator-3d/id1375862583)

Build and customize a wide variety of firearms virtually. Explore an extensive arsenal, add attachments, and test your creations on a shooting range. Enjoy realistic gun sounds and graphics in this free simulation game.

**Highlights:** 3D gun builder, Extensive parts and attachments, Realistic shooting simulation, Challenging shooting range missions, Large arsenal of firearms, Customizable weapon skins, Realistic gun sounds

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $1.99 | one-time |

**What reviewers like**

- 👍 Customizable guns
- 🤩 Fun and satisfying gameplay
- 🔥 Great gun simulator
- 🎨 Awesome camo creation

**What reviewers complain about**

- 🐛 Bugs with certain weapon types
- 💰 Expensive in-game purchases
- 🔍 Limited scope/zoom functionality
- 🕹️ Unresponsive controls

**Reported bugs**

- Shotguns and snipers not showing up in gun camera
- Infinite ammo button not working as expected
- Inconsistent bullet damage across weapons

**Requested features**

- Add more guns and weapon types
- Implement a multiplayer mode
- Include a target range for testing guns
- Allow for custom camo creation


## Frequently asked questions

### Is Gun Builder Custom Guns free?

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

### Is Custom Gun Simulator 3D free?

Custom Gun Simulator 3D is free to download, with in-app purchases available.

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

Custom Gun Simulator 3D is rated higher. Gun Builder Custom Guns averages 4.5 out of 5 from 1.7K ratings, while Custom Gun Simulator 3D averages 4.7 from 1.2K ratings.

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

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

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

Gun Builder Custom Guns ships an update every 5 weeks, and Custom Gun Simulator 3D every 6 months. Most recently, Gun Builder Custom Guns was updated on October 29, 2026 and Custom 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.*