# Handai Shuttle Bus vs Wavelet Voice Sonogram

The clearest difference is price: Handai Shuttle Bus at Free against Wavelet Voice Sonogram's $6.99. Handai Shuttle Bus also leads on update cadence (every 2 months vs every 8 months) and device support (4 vs 1). On ads and in-app purchases there is nothing between them.

Handai Shuttle Bus is free to download; Wavelet Voice Sonogram costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Handai Shuttle Bus ships an update every 2 months, Wavelet Voice Sonogram every 8 months. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Handai Shuttle Bus | Wavelet Voice Sonogram |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Size | 1 MB | 0 MB |
| Requires iOS | **14.1** | 26.2 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Zhijin Chen](https://appshunter.io/developer/755385892) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## What reviewers say

### Handai Shuttle Bus

[App page](https://appshunter.io/ios/app/handai-shuttle-bus/id755385889)

**In-app purchases:** none


### Wavelet Voice Sonogram

[App page](https://appshunter.io/ios/app/wavelet-voice-sonogram/id1574131130)

**In-app purchases:** none


## Frequently asked questions

### Is Handai Shuttle Bus free?

Handai Shuttle Bus is free to download, with no in-app purchases.

### Is Wavelet Voice Sonogram free?

Wavelet Voice Sonogram costs $6.99, with no in-app purchases.

### Do Handai Shuttle Bus or Wavelet Voice Sonogram have ads?

Neither Handai Shuttle Bus nor Wavelet Voice Sonogram shows ads.

### Which is updated more often, Handai Shuttle Bus or Wavelet Voice Sonogram?

Handai Shuttle Bus ships an update every 2 months, and Wavelet Voice Sonogram every 8 months. Most recently, Handai Shuttle Bus was updated on October 7, 2026 and Wavelet Voice Sonogram 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.*