# Interactive Number Line vs AAT Plus

The clearest difference is price: AAT Plus at Free against Interactive Number Line's $0.99. AAT Plus also leads on update cadence (monthly vs every 35 months). Interactive Number Line's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). On ads and device support there is nothing between them.

AAT Plus is free to download; Interactive Number Line costs $0.99 up front. AAT Plus sells 3 in-app purchases, starting at $5.99 per month. Interactive Number Line asks for nothing beyond the download.

Interactive Number Line ships an update every 35 months, AAT Plus monthly. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Interactive Number Line | AAT Plus |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/aat-plus/id1527491925/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 35 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 112 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPad, Apple TV** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Smarty Ears](https://appshunter.io/developer/348779167) |

## What reviewers say

### Interactive Number Line

[App page](https://appshunter.io/ios/app/interactive-number-line/id1146532589)

**Features:** macOS Compatibility

**In-app purchases:** none


### AAT Plus

[App page](https://appshunter.io/ios/app/aat-plus/id1527491925)

This tool offers a comprehensive suite of screeners and assessments for articulation, including quick screeners, full assessments, sentence-level tests, and stimulability tests. It is designed to aid in evaluating speech sound production.

**Highlights:** Quick screener, Full assessment, Sentence level assessment, R Screener, Stimulability tests

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Unlimited Testing | $5.99 | per month |
| Yearly Unlimited Tests | $37.99 | per year |
| Purchase 5 tests | $5.99 | one-time |


## Frequently asked questions

### Is Interactive Number Line free?

Interactive Number Line costs $0.99, with no in-app purchases.

### Is AAT Plus free?

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

### Do Interactive Number Line or AAT Plus have ads?

Neither Interactive Number Line nor AAT Plus shows ads.

### Which is updated more often, Interactive Number Line or AAT Plus?

Interactive Number Line ships an update every 35 months, and AAT Plus monthly. Most recently, Interactive Number Line was updated on September 29, 2026 and AAT Plus on October 7, 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.*