# Custom Gun Simulator 3D vs Gun Assembly

Custom Gun Simulator 3D and Gun Assembly both sit at 4.7 stars, but that hides the real split: 83% of Custom Gun Simulator 3D's written reviews are positive against 29% of Gun Assembly's. Custom Gun Simulator 3D also leads on ratings volume (1.1K vs 325). Gun Assembly's advantage is in-app purchases (none vs 1) and update cadence (every 4 days vs every 6 months). On price, rating, ads and monetization model there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for Custom Gun Simulator 3D against 4.6 for Gun Assembly. Both are backed by a comparable volume of ratings — 1.1K and 325 respectively. Written reviews are what separate them: 83% of Custom Gun Simulator 3D's written reviews are positive against 29% of Gun Assembly's.

Custom Gun Simulator 3D ships an update every 6 months, Gun Assembly every 4 days. The most recent releases landed on September 27, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Custom Gun Simulator 3D | Gun Assembly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.1K ratings)](https://appshunter.io/ios/app/custom-gun-simulator-3d/id1375862583/reviews)** | [4.6 (325 ratings)](https://appshunter.io/ios/app/gun-assembly/id6444002089/reviews) |
| Number of ratings | **1.1K** | 325 |
| Positive reviews | **83.2% of reviews** | 28.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 4 days** |
| Monetization | Ad-supported | Ad-supported |
| Size | 155 MB | 246 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Marijana Peric](https://appshunter.io/developer/1711240603) | [Besim Toker](https://appshunter.io/developer/1572847425) |

## What reviewers say

### 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


### Gun Assembly

[App page](https://appshunter.io/ios/app/gun-assembly/id6444002089)

Assemble and customize a wide variety of guns by tapping to earn money and unlock new mods. Open loot boxes to acquire awesome upgrades and assemble legendary items to create the ultimate firearm.

**Highlights:** Tap to earn money, Open loot boxes, Acquire awesome mods, Customize gun aspects, Assemble legendary items

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

**In-app purchases:** none


## Frequently asked questions

### Is Custom Gun Simulator 3D free?

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

### Is Gun Assembly free?

Gun Assembly is free to download, with no in-app purchases.

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

Custom Gun Simulator 3D is rated higher. Custom Gun Simulator 3D averages 4.7 out of 5 from 1.1K ratings, while Gun Assembly averages 4.6 from 325 ratings.

### Do Custom Gun Simulator 3D or Gun Assembly have ads?

Both Custom Gun Simulator 3D and Gun Assembly show ads.

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

Custom Gun Simulator 3D ships an update every 6 months, and Gun Assembly every 4 days. Most recently, Custom Gun Simulator 3D was updated on September 27, 2026 and Gun Assembly on August 15, 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.*