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SpeechTest is a tool for measuring the vocal maturation of boys through pubertal change. It works by measuring average spoken pitch while counting backwards from 20 and comparing the result to expected values in relation to larynx growth in males.

Designed for a research study to compare vocal maturation with pubertal development, the app aims to provide a clear indication of a boy’s progress without being invasive. With the ability to save results, it is possible to examine progression over time, simply by using the app on a regular basis.

Key Features:
- Accurate measurement of spoken pitch
- Clear indication of vocal maturation based on research
- Test results stored for longitudinal analysis

SpeechTest was developed for a research team and is based on a prototype written by Professor David M Howard (University of York). The team comprises Professor Martin Ashley (Edge Hill University), Professor Gary Butler (University College Hospital, London) and Professor David M Howard (University of York).

What’s New

Version 1.1

An error in the average pitch value calculation is fixed

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, davidmhoward.com, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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