# Fart World vs Aliens Motion Tracker

The clearest difference is price: Fart World at Free against Aliens Motion Tracker's $0.99. Fart World also leads on update cadence (every 3 months vs every 14 months) and ratings volume (22K vs 291). Aliens Motion Tracker's advantage is in-app purchases (none vs 5) and ads (none vs shown). On rating, review sentiment and device support there is nothing between them.

Fart World is free to download; Aliens Motion Tracker costs $0.99 up front. Fart World sells 5 in-app purchases, starting at $3.99 per month. Aliens Motion Tracker asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Fart World against 4.7 for Aliens Motion Tracker. That said, the two scores are not equally well evidenced: Fart World has 22K ratings behind it against 291, so its average is the more settled of the two. Written reviews are what separate them: 65% of Fart World's written reviews are positive against 63% of Aliens Motion Tracker's.

Fart World ships an update every 3 months, Aliens Motion Tracker every 14 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Fart World | Aliens Motion Tracker |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.7 (22K ratings)](https://appshunter.io/ios/app/fart-world/id300897713/reviews) | **[4.7 (291 ratings)](https://appshunter.io/ios/app/aliens-motion-tracker/id832823029/reviews)** |
| Number of ratings | **22K** | 291 |
| Positive reviews | **65.1% of reviews** | 62.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 14 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#54** |
| Size | 109 MB | 5 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Gabriel Jacobs](https://appshunter.io/developer/289913784) | [Dizzy Squirrel Limited](https://appshunter.io/developer/587374273) |

## What reviewers say

### Fart World

[App page](https://appshunter.io/ios/app/fart-world/id300897713)

Explore a variety of fart-themed entertainment, including soundboards, memory games, and video creation tools. Prank your friends with custom fart sounds and poop noises. Enjoy a fun and silly experience with a wide range of audio and interactive features.

**Highlights:** Fart soundboard, Fart memory game, Create fart videos, Prank calls/dialing, Make it rain poop, Fart music creation, Customizable fart messages

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | per month |
| Premium | $4.99 | per month |
| Fart Premium | $24.99 | per year |
| Fart World Premium | $4.99 | one-time |
| Premium | $44.99 | one-time |

**What reviewers like**

- 😊 Funny and entertaining
- 👍 Easy to use
- 🤩 Variety of fart sounds
- 🎉 Fun for pranks and entertainment

**What reviewers complain about**

- 🙄 Excessive ads
- 💰 Premium version not worth the cost
- 🐛 Crashes and bugs after updates
- 🤬 Intrusive ad placement

**Reported bugs**

- App crashes when trying to play sounds
- Incompatibility issues with newer iOS versions
- Purchased premium features not working as expected

**Requested features**

- Option to remove ads without subscription
- More customization options for fart sounds
- Ability to layer/combine fart sounds
- Improved video integration


### Aliens Motion Tracker

[App page](https://appshunter.io/ios/app/aliens-motion-tracker/id832823029)

**Currently charting:** #54 Top Paid · Entertainment (US App Store)

Transform your device into an entertainment motion tracker inspired by classic sci-fi. Simulate alien encounters with authentic visuals and sounds, controlled by your device's compass and gyroscope.

**Highlights:** Authentic visuals and sound, Device compass and gyroscope control, Tap to place alien on scanner, Recreate movie scenes, Enact own alien encounters

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

**In-app purchases:** none

**What reviewers like**

- 🤩 Authentic movie replica
- 👍 Great for fans
- ✨ Cool visual effects
- 💯 Fun novelty app
- 🎯 Accurate display

**What reviewers complain about**

- 🔇 No sound issues
- 🔊 Sound not working
- 😞 Pulse sound inaccurate
- ❌ Audio problems

**Reported bugs**

- No sound at all
- Sound doesn't work
- Audio not playing
- Stopped producing multiple pings
- Sound doesn't work through iPhone X

**Requested features**

- Add AirTag tracking
- Sentry Gun control mode
- More customization options (color, background)
- Targets running at the user
- Multiply pinging sound with more targets


## Frequently asked questions

### Is Fart World free?

Fart World is free to download, with in-app purchases available.

### Is Aliens Motion Tracker free?

Aliens Motion Tracker costs $0.99, with no in-app purchases.

### Which has better reviews, Fart World or Aliens Motion Tracker?

Aliens Motion Tracker is rated higher. Fart World averages 4.7 out of 5 from 22K ratings, while Aliens Motion Tracker averages 4.7 from 291 ratings.

### Do Fart World or Aliens Motion Tracker have ads?

Fart World shows ads; Aliens Motion Tracker does not.

### Which is updated more often, Fart World or Aliens Motion Tracker?

Fart World ships an update every 3 months, and Aliens Motion Tracker every 14 months. Most recently, Fart World was updated on October 24, 2026 and Aliens Motion Tracker on October 23, 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.*