# Fart Button vs Smart Charge HK

The clearest difference is price: Smart Charge HK at Free against Fart Button's $0.99. Smart Charge HK also leads on update cadence (every 9 months vs every 77 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Smart Charge HK is free to download; Fart Button costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fart Button ships an update every 77 months, Smart Charge HK every 9 months. The most recent releases landed on November 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fart Button | Smart Charge HK |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.0 (8 ratings)](https://appshunter.io/ios/app/fart-button-epic-rip-edition/id300106450/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 77 months | **Every 9 months** |
| Monetization | Paid | — |
| Size | 16 MB | 60 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Rocket Splash Games](https://appshunter.io/developer/471267937) | [Smart Charge (HK) Limited](https://appshunter.io/developer/1191747508) |

## What reviewers say

### Fart Button

[App page](https://appshunter.io/ios/app/fart-button-epic-rip-edition/id300106450)

This app offers a collection of over 100 unique fart sound effects for entertainment. It features an easy-to-use interface with elegant graphics and is compatible with various Apple devices. Enjoy endless amusement with friends using these epic rips.

**Highlights:** Over 100 fart sound effects, Easy navigation, Elegant graphics, Universal app support, Variety of sound names

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

**In-app purchases:** none


### Smart Charge HK

[App page](https://appshunter.io/ios/app/smart-charge-hk/id1567190640)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fart Button free?

Fart Button costs $0.99, with no in-app purchases.

### Is Smart Charge HK free?

Smart Charge HK is free to download, with no in-app purchases.

### Do Fart Button or Smart Charge HK have ads?

Neither Fart Button nor Smart Charge HK shows ads.

### Which is updated more often, Fart Button or Smart Charge HK?

Fart Button ships an update every 77 months, and Smart Charge HK every 9 months. Most recently, Fart Button was updated on November 6, 2026 and Smart Charge HK on October 25, 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.*