Vowel Practice vs VoiceViewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vowel Practice
Analyze spoken vowels by calculating and plotting their formant frequencies. Speak a word with a single vowel to see its graphical representation on a standard vowel diagram, with an indicator light showing the application's status. Useful for speech therapy, language learning, and research.
- Calculates formant frequencies
- Plots vowel locations on a diagram
- Analyzes spoken vowels
- Indicator light for status
- Assists speech therapy
- Supports language learning
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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.
VoiceViewer
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实时音高、音频展示; 音高、音色评估; 历史评估记录查询;
Screenshots
Verdict
The clearest difference is price: VoiceViewer at Free against Vowel Practice's $7.99. VoiceViewer also leads on iOS requirement (15.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
VoiceViewer is free to download; Vowel Practice costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Vowel Practice | VoiceViewer |
|---|---|---|
| Price | $7.99 | Free — better |
| Positive reviews | 20.0% of reviews | — |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | William Entriken | 晓亮 敬 |
In-app purchases
Vowel Practice
No in-app purchases
VoiceViewer
No in-app purchases
Questions
Is Vowel Practice free?
Is VoiceViewer free?
Do Vowel Practice or VoiceViewer have ads?
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