# Gun Builder 3D! vs Electronics Repair Store Sim

The clearest difference is rating: Gun Builder 3D! at 4.7 against Electronics Repair Store Sim's 3.0. Gun Builder 3D! also leads on update cadence (fortnightly vs every 8 months) and ratings volume (4.5K vs 2). Electronics Repair Store Sim's advantage is monetization model (ad-supported vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Gun Builder 3D! holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Gun Builder 3D! has 4.5K ratings behind it against 2, so its average is the more settled of the two.

Gun Builder 3D! ships an update fortnightly, Electronics Repair Store Sim every 8 months. The most recent releases landed on September 15, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Gun Builder 3D! | Electronics Repair Store Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (4.5K ratings)](https://appshunter.io/ios/app/gun-builder-3d/id1492690876/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/electronics-repair-store-sim/id6470198657/reviews) |
| Number of ratings | **4.5K** | 2 |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 8 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 407 MB | 137 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [moztec](https://appshunter.io/developer/932993004) | [Farjad Adnan](https://appshunter.io/developer/1532243346) |

## What reviewers say

### Gun Builder 3D!

[App page](https://appshunter.io/ios/app/gun-builder-3d/id1492690876)

Assemble intricate firearms in a 3D puzzle environment. Fulfill orders, earn in-game currency, and unlock new tools and weapon designs. Enjoy smooth animations and a satisfying building experience.

**Highlights:** 3D puzzle gun assembly, Fulfill gun orders, Earn in-game money, Unlock new tools and guns, Upgrade workspace, Smooth animations

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💕 Enjoyable game
- 👍 Minimal ads
- 🤩 Fun and challenging
- 🎉 Great for passing time
- 🙂 Relaxing experience

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🤔 Overly precise part placement
- 💸 Too many ads
- 🤯 Frustrating difficulty
- 😕 Inaccurate gun representations

**Reported bugs**

- Game crashes on launch
- Progress resets or gets deleted
- Parts not registering in correct spots
- Freezing and performance issues
- Compatibility problems on certain devices

**Requested features**

- More levels and guns
- Shooting range or target practice mode
- Camera mode to view built guns
- Less restrictive part placement
- Improved gun accuracy and realism


### Electronics Repair Store Sim

[App page](https://appshunter.io/ios/app/electronics-repair-store-sim/id6470198657)

Become an electronics repair master in this 3D simulator game. Fix broken phones, computers, and other devices using various tools and techniques. Run your own repair shop and help customers get their electronics working again.

**Highlights:** Electronics repair simulation, Fix phones and computers, Run your own repair shop, Learn repair techniques, Variety of tools and techniques, ASMR effects

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gun Builder 3D! free?

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

### Is Electronics Repair Store Sim free?

Electronics Repair Store Sim is free to download, with no in-app purchases.

### Which has better reviews, Gun Builder 3D! or Electronics Repair Store Sim?

Gun Builder 3D! is rated higher. Gun Builder 3D! averages 4.7 out of 5 from 4.5K ratings, while Electronics Repair Store Sim averages 3.0 from 2 ratings.

### Do Gun Builder 3D! or Electronics Repair Store Sim have ads?

Both Gun Builder 3D! and Electronics Repair Store Sim show ads.

### Which is updated more often, Gun Builder 3D! or Electronics Repair Store Sim?

Gun Builder 3D! ships an update fortnightly, and Electronics Repair Store Sim every 8 months. Most recently, Gun Builder 3D! was updated on September 15, 2026 and Electronics Repair Store Sim on September 17, 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.*