# Alien Motion Detector vs Gun Simulator Ultimate

The clearest difference is price: Gun Simulator Ultimate at Free against Alien Motion Detector's $1.99. Alien Motion Detector's advantage is rating (3.9 vs 3.0) and ads (none vs shown). On in-app purchases and device support there is nothing between them.

Gun Simulator Ultimate is free to download; Alien Motion Detector costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Alien Motion Detector holds the better App Store score, 3.9 against 3.0. That said, the two scores are not equally well evidenced: Alien Motion Detector has 31 ratings behind it against 1, so its average is the more settled of the two.

Alien Motion Detector ships an update every 6 weeks, Gun Simulator Ultimate every 23 months. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Alien Motion Detector | Gun Simulator Ultimate |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.9 (31 ratings)](https://appshunter.io/ios/app/alien-motion-detector/id578146041/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/gun-simulator-ultimate/id6733238994/reviews) |
| Number of ratings | **31** | 1 |
| Positive reviews | 66.2% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 23 months |
| Monetization | **Free** | Ad-supported |
| Best chart rank | **#137** | — |
| Size | 30 MB | 34 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Joey To](https://appshunter.io/developer/578146044) | [Liam Waddell](https://appshunter.io/developer/1227875211) |

## What reviewers say

### Alien Motion Detector

[App page](https://appshunter.io/ios/app/alien-motion-detector/id578146041)

**Currently charting:** #137 Top Paid · Entertainment (US App Store)

This app is for entertainment purposes only, simulating alien detection. Users can place and interact with virtual aliens on their screen, watching them move and react. It utilizes device gyroscopes for an interactive experience.

**Highlights:** Simulated alien motion detection, Place and draw virtual aliens, Aliens swarm to your location, Adjust alien behavior (count, speed, lifetime), Gyroscope-controlled interaction

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

**In-app purchases:** none

**What reviewers like**

- 🎵 Authentic sounds
- 🤩 Fan favorite
- 💯 Faithful representation
- 🎮 Fun for role-playing
- 💡 Good idea, well-executed

**What reviewers complain about**

- 💸 Overpriced for features
- 🐌 Slow ping/tracking
- 🚫 No sound reported
- 📱 Not working on newer iPhones
- 👎 Basic functionality

**Reported bugs**

- No audio/sound
- Won't add to watch screen
- Placing aliens on screen not working
- Can't add beeping sound
- Doesn't work on iPhone XS Max

**Requested features**

- Auto-generated movement setting
- Add Bluetooth detection for friends
- Integrate with location services
- Record feature
- Higher pitch sound as aliens get closer


### Gun Simulator Ultimate

[App page](https://appshunter.io/ios/app/gun-simulator-ultimate/id6733238994)

Experience a wide range of authentic firearm sound effects, from shotguns to sniper rifles. This app provides realistic audio simulations for various weapons, offering an immersive auditory experience for enthusiasts.

**Highlights:** Realistic gun sound effects, Wide arsenal of weapon sounds, Immersive auditory experience, Authentic firearm audio simulation

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

**In-app purchases:** none


## Frequently asked questions

### Is Alien Motion Detector free?

Alien Motion Detector costs $1.99, with no in-app purchases.

### Is Gun Simulator Ultimate free?

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

### Which has better reviews, Alien Motion Detector or Gun Simulator Ultimate?

Alien Motion Detector is rated higher. Alien Motion Detector averages 3.9 out of 5 from 31 ratings, while Gun Simulator Ultimate averages 3.0 from 1 ratings.

### Do Alien Motion Detector or Gun Simulator Ultimate have ads?

Gun Simulator Ultimate shows ads; Alien Motion Detector does not.

### Which is updated more often, Alien Motion Detector or Gun Simulator Ultimate?

Alien Motion Detector ships an update every 6 weeks, and Gun Simulator Ultimate every 23 months. Most recently, Alien Motion Detector was updated on October 16, 2026 and Gun Simulator Ultimate on October 13, 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.*