# How it Works vs Gun Builder 3D!

The clearest difference is review sentiment: How it Works at 100% against Gun Builder 3D!'s 53%. How it Works also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Gun Builder 3D!'s advantage is ratings volume (4.5K vs 5) and rating (4.7 vs 4.4). On price, 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 4.4. That said, the two scores are not equally well evidenced: Gun Builder 3D! has 4.5K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 100% of How it Works's written reviews are positive against 53% of Gun Builder 3D!'s, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | How it Works | Gun Builder 3D! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (5 ratings)](https://appshunter.io/ios/app/how-it-works-m16-a1/id1329748899/reviews) | **[4.7 (4.5K ratings)](https://appshunter.io/ios/app/gun-builder-3d/id1492690876/reviews)** |
| Number of ratings | 5 | **4.5K** |
| Positive reviews | **100.0% of reviews** | 52.9% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 119 MB | 407 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Noble Empire South Limited](https://appshunter.io/developer/1293786398) | [moztec](https://appshunter.io/developer/932993004) |

## What reviewers say

### How it Works

[App page](https://appshunter.io/ios/app/how-it-works-m16-a1/id1329748899)

Explore the inner workings of the M16 assault rifle with a detailed 3D model and interactive animations. Features include firing, unloading, and reloading sequences, with options for slow motion, x-ray, and cutaway views. Utilize augmented reality to capture and share unique photos.

**Highlights:** Detailed 3D model, Operation animations (fire, unload, reload), Augmented reality mode, Slow motion playback, X-ray and cutaway views, Tap'n'Hide part removal

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is How it Works free?

How it Works is free to download, with no in-app purchases.

### Is Gun Builder 3D! free?

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

### Which has better reviews, How it Works or Gun Builder 3D!?

Gun Builder 3D! is rated higher. How it Works averages 4.4 out of 5 from 5 ratings, while Gun Builder 3D! averages 4.7 from 4.5K ratings.

### Do How it Works or Gun Builder 3D! have ads?

Gun Builder 3D! shows ads; How it Works does not.

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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.*