# Lexico Cognition Pro vs Keyword Understanding

The clearest difference is price: Keyword Understanding at $17.99 against Lexico Cognition Pro's $24.99. Keyword Understanding also leads on device support (3 vs 1). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

Lexico Cognition Pro costs $24.99 and Keyword Understanding $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lexico Cognition Pro ships an update every 11 months, Keyword Understanding every 10 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Lexico Cognition Pro | Keyword Understanding |
| --- | --- | --- |
| Price | $24.99 | **$17.99** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/keyword-understanding/id816979055/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 10 months** |
| Monetization | — | Paid |
| Size | 101 MB | 64 MB |
| Requires iOS | 15.0 | 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 Cognition Pro

[App page](https://appshunter.io/ios/app/lexico-cognition-pro/id795247813)

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

**In-app purchases:** none


### Keyword Understanding

[App page](https://appshunter.io/ios/app/keyword-understanding/id816979055)

This app helps users of all ages improve their ability to understand spoken and written directions. It features various activities targeting vocabulary, basic concepts, and sequential instructions, making it beneficial for individuals with listening comprehension or processing difficulties.

**Highlights:** Follow spoken and written directions, Improve vocabulary and basic concepts, Target auditory attention and working memory, Activities for one and two-step directions, Temporal and sequential direction practice, Comprehension check for vocabulary and concepts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lexico Cognition Pro free?

Lexico Cognition Pro costs $24.99, with no in-app purchases.

### Is Keyword Understanding free?

Keyword Understanding costs $17.99, with no in-app purchases.

### Do Lexico Cognition Pro or Keyword Understanding have ads?

Neither Lexico Cognition Pro nor Keyword Understanding shows ads.

### Which is updated more often, Lexico Cognition Pro or Keyword Understanding?

Lexico Cognition Pro ships an update every 11 months, and Keyword Understanding every 10 months. Most recently, Lexico Cognition Pro was updated on November 1, 2026 and Keyword Understanding on October 29, 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.*