# The Phonetics 3D vs Readix

The clearest difference is price: Readix at Free against The Phonetics 3D's $7.99. Readix also leads on update cadence (every 3 days vs every 3 weeks). The Phonetics 3D's advantage is in-app purchases (none vs 2) and iOS requirement (15.6 vs 17.0). On ads and device support there is nothing between them.

Readix is free to download; The Phonetics 3D costs $7.99 up front. Readix sells 2 in-app purchases, starting at $7.99 per month. The Phonetics 3D asks for nothing beyond the download.

The Phonetics 3D ships an update every 3 weeks, Readix every 3 days. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | The Phonetics 3D | Readix |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[3.2 (9 ratings)](https://appshunter.io/ios/app/the-phonetics-3d/id841485989/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 51.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Paid | — |
| Size | 53 MB | 9 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Fuminori Homma](https://appshunter.io/developer/841485992) | [ZHANG YIQUN](https://appshunter.io/developer/496173584) |

## What reviewers say

### The Phonetics 3D

[App page](https://appshunter.io/ios/app/the-phonetics-3d/id841485989)

Visualize English pronunciation with realistic 3D graphics, detailing tongue position, airflow, and vocal cord vibration. Understand the mechanics of sounds, ideal for learners rebuilding pronunciation or those struggling with specific sounds.

**Highlights:** 3D visualization of phonemes, Detailed tongue and airflow explanations, Comparison of native vs. accented pronunciation, Coverage of commonly confused sounds, High-frequency vocabulary visualization, Slow and phoneme-by-phoneme playback

**Features:** Vision Pro support

**In-app purchases:** none


### Readix

[App page](https://appshunter.io/ios/app/readix/id6758011570)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $7.99 | per month |
| Yearly | $89.99 | per year |


## Frequently asked questions

### Is The Phonetics 3D free?

The Phonetics 3D costs $7.99, with no in-app purchases.

### Is Readix free?

Readix is free to download, with in-app purchases available.

### Do The Phonetics 3D or Readix have ads?

Neither The Phonetics 3D nor Readix shows ads.

### Which is updated more often, The Phonetics 3D or Readix?

The Phonetics 3D ships an update every 3 weeks, and Readix every 3 days. Most recently, The Phonetics 3D was updated on October 14, 2026 and Readix on October 2, 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.*