Vowel Practice

William Entriken · Utilities

1.0 1 ratings $7.99

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Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Oct 14, 2026
New version 2.1.3 → 2.1.4

Rebuild

Sep 22, 2026
Rating ★ 0 → 1

In-app purchases · US

No in-app purchases.

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About

This application calculates and plots the formant frequencies of spoken vowels. The user should speak a word containing a single vowel, and we will analyze and show results. First two formant frequencies are used to graphically show the location of spoken vowel on a standard vowel diagram. An indicator light changes its color to display the status of the application. This is made to assist with speech therapy and language learning as well as other research topics.

What's new · 2.1.4

Rebuild

Details

ReleasedJan 2014
UpdatedMay 2026
Version2.1.4
Size1.5 MB
RequiresiOS 26.0 or later
Age rating4+
LanguagesEnglish
Price$7.99
Categories UtilitiesEducation
Bundle IDnet.phor.FormantPlotter