# Lexico Articulation vs Keywords Understanding Lite

The clearest difference is in-app purchases: Keywords Understanding Lite at none against Lexico Articulation's 10. Keywords Understanding Lite also leads on device support (3 vs 1). Lexico Articulation's advantage is update cadence (every 16 months vs every 68 months) and iOS requirement (9.0 vs 15.0). On price and ads there is nothing between them.

Both are free to download. Lexico Articulation sells 10 one-off in-app purchases. Keywords Understanding Lite asks for nothing beyond the download.

Lexico Articulation ships an update every 16 months, Keywords Understanding Lite every 68 months. The most recent releases landed on September 14, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | Lexico Articulation | Keywords Understanding Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/keywords-understanding-lite/id1537440607/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 16 months** | Every 68 months |
| Monetization | — | Free |
| Size | 174 MB | 60 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pappy GmbH](https://appshunter.io/developer/461368271) | [Aptus Speech and Language Therapy Limited](https://appshunter.io/developer/1482673468) |

## What reviewers say

### Lexico Articulation

[App page](https://appshunter.io/ios/app/lexico-articulation/id1008585580)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TH-SOUND | $0.99 | one-time |
| NG-SOUND | $1.99 | one-time |
| CH-SOUND | $2.99 | one-time |
| F-SOUND | $3.99 | one-time |
| SH-SOUND | $3.99 | one-time |
| K-SOUND | $3.99 | one-time |
| S-SOUND | $3.99 | one-time |
| P-SOUND | $3.99 | one-time |
| R-SOUND | $5.99 | one-time |
| ALL-SOUND | $69.99 | one-time |


### Keywords Understanding Lite

[App page](https://appshunter.io/ios/app/keywords-understanding-lite/id1537440607)

This app offers a sample of speech and language therapy exercises focused on sentence comprehension. It helps users practice following directions, understanding basic concepts, and improving auditory and reading comprehension skills through interactive activities.

**Highlights:** Listening comprehension exercises, Reading comprehension exercises, Following directions (one/two-step, temporal, sequential), Basic concepts (size, color), Vocabulary understanding, Sample of full app features

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lexico Articulation free?

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

### Is Keywords Understanding Lite free?

Keywords Understanding Lite is free to download, with no in-app purchases.

### Do Lexico Articulation or Keywords Understanding Lite have ads?

Neither Lexico Articulation nor Keywords Understanding Lite shows ads.

### Which is updated more often, Lexico Articulation or Keywords Understanding Lite?

Lexico Articulation ships an update every 16 months, and Keywords Understanding Lite every 68 months. Most recently, Lexico Articulation was updated on September 14, 2026 and Keywords Understanding Lite on August 12, 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.*