Vowels Front Back vs Phylogenetic Tree View
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Vowels Front Back
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The Speech Articulation: Vowels Front/Back 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 five front and five back vowel 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 vowels of American English. Disclaimer: seek a doctorβs advice in addition to using this app and before making any medical decisions. β’ 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. Description text shows or hides on demand. - Anatomy view - 26 parts, includes nose, mouth and throat structure ID. Zoom and pans. β’ Highlight View: key view of the tongue shape and placement for five front and five back vowels of American English. - Front: /i/, /Ιͺ/, /e/, /Ξ΅/, /Γ¦/ Back: /Ξ±/, /Χ/, /o/, /Ο /, /u/ β’ Animations: each vowel shows a lateral view of dynamic movements of the jaw, lips, tongue, velum (soft palate), and larynx needed for proper articulation of that vowel. Audio for each vowel sound is synchronized with the dynamic animations. Anatomy animations included. β’ Two finger pan of all animations and key animation pages. β’ Drawing Whiteboard feature: - Drawing: freeform lines in red, blue, green or black hue. - Draw and 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. β’ iOS 6.0+ required, designed for iPad and iPhone. The Speech Articulation: Vowels Front/Back app makes learning otitis media ear disorders easy. See example screen shots below. Get the app today!
Phylogenetic Tree View
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Draws phylogenetics trees from newick format text. Rearrange and reroot trees.
Screenshots
Verdict
The clearest difference is price: Phylogenetic Tree View at Free against Vowels Front Back's $3.99. Phylogenetic Tree View also leads on update cadence (every 11 months vs every 40 months). Vowels Front Back's advantage is ads (none vs shown) and iOS requirement (11.0 vs 13.0). On in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Phylogenetic Tree View is free to download; Vowels Front Back costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Vowels Front Back ships an update every 40 months, Phylogenetic Tree View every 11 months. The most recent releases landed on October 8, 2026 and September 27, 2026 respectively.
| Parameter | Vowels Front Back | Phylogenetic Tree View |
|---|---|---|
| Price | $3.99 | Free β better |
| Update frequency | Every 40 months | Every 11 months β better |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 β better | 13.0 |
| Further details β not scored | ||
| Size | 53 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Tree Publishing, Inc. | Sigmar Stefansson |
In-app purchases
Vowels Front Back
No in-app purchases
Phylogenetic Tree View
No in-app purchases
Questions
Is Vowels Front Back free?
Is Phylogenetic Tree View free?
Do Vowels Front Back or Phylogenetic Tree View have ads?
Which is updated more often, Vowels Front Back or Phylogenetic Tree View?
Other comparisons
