Semivowels vs Dyslexia Test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Semivowels
This app offers dynamic animations and interactive anatomy views to illustrate the production of American English consonants. It includes detailed explanations of tongue placement and jaw movements, with synchronized audio and a drawing whiteboard for annotation. Designed for professionals and educators, it aids in understanding speech articulation.
- Dynamic consonant animations
- Interactive anatomy identification
- Tongue shape and placement views
- Synchronized audio examples
- Drawing whiteboard feature
- Screenshot functionality
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Semivowels app, authored by Fred D. Minifie, Ph.D, provides valuable instructional/clinical tools for speech-language pathologists, otolaryngologists, speech scientists, linguists, teachers of singing and other professionals. The app includes three nasal, four non-nasal (with three /r/ variants) consonant dynamic animations with sound plus a key view for each of the tongue shape and placement for the structural movements involved in the production of the consonants of American English. • Anatomy ID: as each part is touched, the part highlights and the part name and description text changes. Description text shows or hides on demand . ◊ Anatomy view - 26 parts, includes nose, mouth and throat structure ID. Zoom and pans. • Highlight View: key view of the tongue shape and placement for three nasal, four non-nasal (with three /r/ variants) consonants of American English. ◊ Nasal: /m/, /n/, /ŋ/ Non-nasal: /w/, /j/, /l/, /r/ (three variants on /r/) ◊ Includes a 3 /r/ variant overlay illustration comparing the alveolar, retroflex and velar place of articulation. ◊ Includes a word and sentence audio example to illustrate consonant articulation for /m/, /n/, /ŋ/, /w/, /j/, /l/ • Animations: each consonant shows a lateral view of dynamic movements of the jaw, lips, tongue, velum (soft palate), and larynx needed for proper articulation of that consonant. Audio for each consonant sound is synchronized with the dynamic animations. Anatomy animation included. • Two finger pan of all animations and key view pages. • Drawing Whiteboard feature: ◊ Drawing: freeform lines in red, blue, green or black hue. ◊ Draw and place text directly on active animation and video. ◊ Text: 36pt, auto wrap, non-movable in red, blue, green or black hue. ◊ Eraser: touch and rub lines and text on whiteboard to erase. ◊ Trash: one tap deletes all whiteboard lines and text. ◊ Screenshot whiteboard direct to Photos App for easy email and printing. • iOS 6.0+ required, designed for iPad and iPhone. Semivowels app makes learning consonants easy. See example screen shots below. Get the app today!
Dyslexia Test
This app offers a quick and immediate assessment to identify potential reading disabilities like dyslexia. It analyzes specific reading challenges and suggests a personalized training program to improve reading fluency and comprehension.
- Immediate results
- Identifies specific reading problems
- Recommends training programs
- Improves reading fluency
- Enhances comprehension
- Free trial available
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Online Reading Tutor (ORT) has helped hundreds of smart kids and adults who struggle with reading. If you believe you or your child may have a reading disability or dyslexia, use the ORT Dyslexia Test for immediate results. In just 5 to 10 minutes, this app can identify specific reading problems and recommend a training program that will help you or your child develop fluent, automatic reading skills. When decoding becomes automatic, comprehension improves dramatically. After completing the test, you may sign up for a Free Trial of our Orton-Gillingham based software, which has been endorsed by the Council of Administrators of Special Education (CASE). We guarantee students using ORT will start to see significant gains after 30 hours of on-task training. Students with an IEP for their learning disability are our specialty. You may also request a call from one of our reading specialists to discuss your or your child’s reading challenges, and see how we can help. Learn more at www.onlinereadingtutor.com This app is protected by U.S. Patent No. 9,386,950 and Copyright © 2014-2017, Online Reading Tutor Services Inc.
Screenshots
Verdict
The clearest difference is review sentiment: Dyslexia Test at 72% against Semivowels's 0%. Dyslexia Test also leads on price (Free vs $4.99) and rating (4.0 vs 2.5). Semivowels's advantage is iOS requirement (12.0 vs 15.6). 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
Dyslexia Test is free to download; Semivowels costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Dyslexia Test holds the better App Store score, 4.0 against 2.5. That said, the two scores are not equally well evidenced: Dyslexia Test has 31 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Semivowels's written reviews are positive against 72% of Dyslexia Test's.
Semivowels ships an update every 37 months, Dyslexia Test every 4 months. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.
| Parameter | Semivowels | Dyslexia Test |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 2.5 (2 ratings) | 4.0 (31 ratings) — better |
| Positive reviews | 0.0% of reviews | 71.9% of reviews — better |
| Number of ratings | 2 | 31 — better |
| Update frequency | Every 37 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 37 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Tree Publishing, Inc. | Online Reading Tutor Services Inc. |
Customer experience
Semivowels
Dyslexia Test
In-app purchases
Semivowels
No in-app purchases
Dyslexia Test
No in-app purchases
Questions
Is Semivowels free?
Is Dyslexia Test free?
Which has better reviews, Semivowels or Dyslexia Test?
Do Semivowels or Dyslexia Test have ads?
Which is updated more often, Semivowels or Dyslexia Test?
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