# Articulation IV vs Visualization  Skills

The clearest difference is price: Visualization  Skills at Free against Articulation IV's $9.99. Articulation IV's advantage is in-app purchases (none vs 3) and update cadence (every 9 months vs every 31 months). On ads, device support and iOS requirement there is nothing between them.

Visualization  Skills is free to download; Articulation IV costs $9.99 up front. Visualization  Skills sells 3 one-off in-app purchases. Articulation IV asks for nothing beyond the download.

Articulation IV ships an update every 9 months, Visualization  Skills every 31 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Articulation IV | Visualization  Skills |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/visualization-skills/id1495917154/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 31 months |
| Monetization | — | Free with in-app purchases |
| Size | 275 MB | 23 MB |
| Requires iOS | **12.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Learning Fundamentals, Inc.](https://appshunter.io/developer/454061076) | [Janine Toole](https://appshunter.io/developer/839832427) |

## What reviewers say

### Articulation IV

[App page](https://appshunter.io/ios/app/articulation-iv/id515128379)

**Features:** macOS Compatibility

**In-app purchases:** none


### Visualization  Skills

[App page](https://appshunter.io/ios/app/visualization-skills/id1495917154)

Enhance reading comprehension by developing mental imagery skills. This app offers step-by-step activities that gradually increase in difficulty, with audio support for struggling readers. It's designed to help learners of all ages improve their ability to visualize text and answer higher-order thinking questions.

**Highlights:** Builds mental imagery for reading, Gradually increments difficulty, Audio instructions for support, Progress reporting, Suitable for children and adults, Designed for special needs

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Second User | $2.99 | one-time |
| Up to 10 Users | $3.99 | one-time |
| Purchase All Levels | $5.99 | one-time |


## Frequently asked questions

### Is Articulation IV free?

Articulation IV costs $9.99, with no in-app purchases.

### Is Visualization  Skills free?

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

### Do Articulation IV or Visualization  Skills have ads?

Neither Articulation IV nor Visualization  Skills shows ads.

### Which is updated more often, Articulation IV or Visualization  Skills?

Articulation IV ships an update every 9 months, and Visualization  Skills every 31 months. Most recently, Articulation IV was updated on November 6, 2026 and Visualization  Skills on November 3, 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.*