# Articulation IV vs LispApp

The clearest difference is price: LispApp at Free against Articulation IV's $9.99. LispApp also leads on update cadence (every 11 days vs every 9 months). Articulation IV's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

LispApp is free to download; Articulation IV costs $9.99 up front. LispApp sells 1 in-app purchase, starting at $34.99 per month. Articulation IV asks for nothing beyond the download.

Articulation IV ships an update every 9 months, LispApp every 11 days. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Articulation IV | LispApp |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 11 days** |
| Size | 275 MB | 145 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Learning Fundamentals, Inc.](https://appshunter.io/developer/454061076) | [ArraTreeni Oy](https://appshunter.io/developer/1345435068) |

## What reviewers say

### Articulation IV

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

**Features:** macOS Compatibility

**In-app purchases:** none


### LispApp

[App page](https://appshunter.io/ios/app/lispapp-language-therapy/id6743806577)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LispApp monthly subscription. | $34.99 | per month |


## Frequently asked questions

### Is Articulation IV free?

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

### Is LispApp free?

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

### Do Articulation IV or LispApp have ads?

Neither Articulation IV nor LispApp shows ads.

### Which is updated more often, Articulation IV or LispApp?

Articulation IV ships an update every 9 months, and LispApp every 11 days. Most recently, Articulation IV was updated on October 16, 2026 and LispApp on October 14, 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.*