# VowelViz Pro

> Interactive speech mapping tool for vowel and R sound pronunciation practice. (iPhone/iPad app by SmartPalate International, LLC.)

- Source: https://appshunter.io/ios/app/vowelviz-pro/id835534002 (this page in markdown: same URL + `.md`)
- Developer: [SmartPalate International, LLC](https://appshunter.io/developer/739540897)
- Category: Education, Medical
- Price: $49.99 with in-app purchases
- Rating: 2.78/5 from 9 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 12 · 75 MB
- Languages: English
- Released: 2014-03-21
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/vowelviz-pro/id835534002/reviews.md

## What is VowelViz Pro?

VowelViz Pro takes the innovative speech mapping app, VowelViz, and makes it even more FUN!  VowelViz Pro implements fun, new themes, flash cards, and Vocalic R View to help further engage  students in speech therapy!  Let your students control the UFO and Bee voice trackers and get them in the correct target ranges.  Flashcards provide words and images associated with target vowels and R.  The real-time, interactive feedback from VowelViz Schools helps students practice target vowels and R accurately and consistently.  

VowelViz Pro includes the Vocalic-R View, which allow users to focus on properly producing the English "R" sound.  The Vocalic-R view includes easy to understand, spelling-based letter to help therapists, parents, and students to understand how to pronounce vocalic R's correctly. 

VowelViz is an innovative speech mapping tool that displays vowel production in real-time. With applications in speech therapy, accent reduction/second language learning, and home practice, VowelViz is a versatile and easy to use tool for practicing vowels. 
 
VowelViz provides a fun and engaging foundation to practice clear and consistent vowels, without guessing, in order to develop and strengthen muscle memory effectively. The app’s display is designed around the vowel quadrilateral and existing research on average vowel formants. When voicing is detected, an orange ball plots the position of the sound on the screen, presenting an easy to understand visual representation of the vowel. By tracking the movement and position of speech over time, learners can better visualize the movements needed for clear and distinct vowels. This understanding provides the framework to practice making those distinctions clear and precise. 

The vowel quadrilateral display shows learners where vowels are produced within the mouth. By moving their tongues up and down and forward and back in their mouths, learners gain control of their speech as they hear, feel and see the differences in sounds. This control allows them to find target vowels and practice them repeatedly until they become natural and fluent in their speech. Quadrants within the vowel quadrilateral act as relative targets and help users orient themselves to where in the mouth they should be producing the vowel. Learners are also able to see how their vowels compare with the researched averages of others. These averages are represented in the app as ranges around each vowel that can also function as relative targets for learning or improving vowels. 

VowelViz provides a platform to transition from simple to more complex speech. In addition to isolated sounds, it can be used to see and practice dipthongs, blends, and even words and phrases. An adjustable tail can be added to VowelViz’s speech tracker to increase understanding of how combinations of sounds work together to form words and other complex speech. The longer the tail, the more clear the connection between sounds. 

VowelViz is designed to be simple and easy to use so that anyone can practice clear, consistent vowel productions. The app is equipped with step-by-step instructions on how to use the various features and options. Also included in the app are diagrams, charts, and descriptions of IPA, the vowel quadrilateral, and vowel formants. Anyone who is unfamiliar with these terms can quickly learn to use VowelViz without any misunderstanding of the terminology or technical aspects used in the app.

## Key features

- Interactive speech mapping
- Vowel quadrilateral display
- Vocalic R View
- Themed voice trackers
- Flashcards with words and images
- Real-time visual feedback

## Pricing and in-app purchases

Base price: $49.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock Themes and Flash Cards | $0.99 | one-time |
| PirateTheme | Free | one-time |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/vowelviz-pro/id835534002/reviews.md

### 1/5 — Not great

*2021-11-17*

The visuals are not accurate. The moving dot does not hit the targets on the screen accurately, even when I’m producing the sound perfectly and clearly. Please update it so the dot hits the vowels. Sometimes the R shows on target…sometimes it doesn’t. The idea behind this app is fantastic!! But this app doesn’t work as advertised.

### 2/5 — iap bought

*2020-01-09*

pirate theme

### 5/5 — It’s not perfect, but it’s really good,

*2019-12-28*

I use VowelViz often with my students who struggle with vocalic /r/. It provides them with reliable visual feedback for their production, helping them develop independent self-monitoring , which is always a struggle. Some voices don’t register as precisely as they might (for example, it doesn’t recognize my /i/ accurately, but does catch everything else I say correctly), but there is nothing else out there that does what this app does. For the pediatric SLP, it’s the best thing going!

### 2/5 — Too expensive

*2018-09-29*

I bought this for $50 hoping it would be a big help for my kids working on vocalic /r/ as I’m a speech path. It wasn’t helpful.

### 2/5 — Free app and still 2stars

*2017-01-10*

For a free app, this program is still not a solid value. Buggy, frustrating and poor UI all equal a rough overall experience. I heard people paid $29-$49 for this? Yikes, I would have felt ripped off.

### 3/5 — Vowels don't work

*2016-10-28*

I'm an adult SLP grad student with no history of any articulation impairment. For this app I can produce R sounds that cause the orange ball to hit the target area on the screen. However NONE of my FRONT vowels hit their targets (those on the left side of the quadrangle). Please adjust and push through an update on this!! Won't be able to use for vowel activities with students. Thanks for the R interface though, quite nice!

### 5/5 — Not perfect, but a worthwhile tool

*2015-12-10*

I work with high school kids, and this app has been really useful for treatment resistant /ɹ/. You MUST use a mic!!!

### 3/5 — Useful for self eval of vocalic r production

*2015-09-18*

I think this is great for kids who need visual feedback on vocalist r production- the ball really does hover in the R space when a correct production is made.  However for the vowels, it is sometimes way off- even their examples- if you press the sample /o/ sound, the ball shows up way down by the /a/ sound.  I got it on sale for $9.99 and am happy to have it for the vocalic r sounds anyway, so I recommend it for that specific use at this point.

### 3/5 — Love this app, but mic not picking up

*2015-09-18*

The microphone is not picking up sound on either vowel viz or vowel viz pro. I love this app for speech therapy and will enjoy the vocalic /r/ once it is fixed. ...and yes I checked my settings for the apps.

## Frequently asked questions about VowelViz Pro

### What is VowelViz Pro?

VowelViz Pro is an interactive speech mapping application designed to help users improve their pronunciation of vowels and the "R" sound. It provides real-time visual feedback, fun themes, and flashcards to make practice engaging.

### Who is VowelViz Pro for?

This app is beneficial for individuals in speech therapy, those learning English as a second language, or anyone seeking to refine their vowel and "R" sound articulation for clearer speech.

### How does VowelViz Pro help with pronunciation?

It visually maps vowel production in real-time using a vowel quadrilateral display, allowing users to see and understand tongue placement. The Vocalic R View specifically aids in correctly producing the English "R" sound.

### Does VowelViz Pro have ads?

No, VowelViz Pro does not contain advertisements. As a paid application, it offers an uninterrupted user experience focused on learning and practice.

### What devices support VowelViz Pro?

VowelViz Pro is available for iPhone, iPad, and iPod devices, making it accessible for practice on various Apple mobile platforms.

### How often is VowelViz Pro updated?

The app was last updated on September 24, 2019, to version 1.7.3. While updates may not be frequent, the core functionality remains robust for its intended purpose.

### What is the age rating for VowelViz Pro?

VowelViz Pro has an age rating of 4+, making it suitable for young children and older users alike who can benefit from its visual learning approach.

### What is the price of VowelViz Pro?

VowelViz Pro is a paid application priced at $49.99. This one-time purchase grants access to all its features for speech and pronunciation practice.

## Version history (last 5 releases)

### 1.7.3 — 2019-09-24

Microphone bug fixed and app updated for latest version of IOS

### 1.7.2 — 2019-09-20

Update screenshot

### 1.7.1 — 2019-09-18

Microphone bug was fixed in latest version of IOS

### 1.7 — 2015-12-16

Fixed glitch for some devices. 
Added troubleshooting information. 
Edited user instruction. 
Edited graphics.

### 1.2.6 — 2015-08-01

Bug Fixes & Design changes

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## More apps by SmartPalate International, LLC

- [Speech Racer Lite](https://appshunter.io/ios/app/speech-racer-lite/id739540894)
- [VowelViz](https://appshunter.io/ios/app/vowelviz/id740035896)
- [Speech Racer](https://appshunter.io/ios/app/speech-racer/id1013928198)

All apps by SmartPalate International, LLC: https://appshunter.io/developer/739540897

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*