# Vowels Front Back vs Phylogenetic Tree View

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.

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.

## The numbers

| Metric | Vowels Front Back | Phylogenetic Tree View |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 40 months | **Every 11 months** |
| Size | 53 MB | 28 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Tree Publishing, Inc.](https://appshunter.io/developer/496143325) | [Sigmar Stefansson](https://appshunter.io/developer/1650379171) |

## What reviewers say

### Vowels Front Back

[App page](https://appshunter.io/ios/app/vowels-front-back/id731753460)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Phylogenetic Tree View

[App page](https://appshunter.io/ios/app/phylogenetic-tree-view/id6444221294)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vowels Front Back free?

Vowels Front Back costs $3.99, with no in-app purchases.

### Is Phylogenetic Tree View free?

Phylogenetic Tree View is free to download, with no in-app purchases.

### Do Vowels Front Back or Phylogenetic Tree View have ads?

Phylogenetic Tree View shows ads; Vowels Front Back does not.

### Which is updated more often, Vowels Front Back or Phylogenetic Tree View?

Vowels Front Back ships an update every 40 months, and Phylogenetic Tree View every 11 months. Most recently, Vowels Front Back was updated on October 8, 2026 and Phylogenetic Tree View on September 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*