# Grammar Express vs Inference Clues

The clearest difference is review sentiment: Inference Clues at 80% against Grammar Express's 0%. Inference Clues also leads on rating (3.3 vs 2.0) and ratings volume (12 vs 1). Grammar Express's advantage is monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Grammar Express sells 1 one-off in-app purchase and Inference Clues sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Inference Clues holds the better App Store score, 3.3 against 2.0. That said, the two scores are not equally well evidenced: Inference Clues has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Grammar Express's written reviews are positive against 80% of Inference Clues's.

Grammar Express ships an update every 13 months, Inference Clues every 8 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Grammar Express | Inference Clues |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/grammar-express-nouns-lite/id369556344/reviews) | **[3.3 (12 ratings)](https://appshunter.io/ios/app/inference-clues-lite/id869101735/reviews)** |
| Number of ratings | 1 | **12** |
| Positive reviews | 0.0% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 8 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 24 MB |
| Requires iOS | 15.0 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Webrich Software Limited](https://appshunter.io/developer/290203591) | [Janine Toole](https://appshunter.io/developer/839832427) |

## What reviewers say

### Grammar Express

[App page](https://appshunter.io/ios/app/grammar-express-nouns-lite/id369556344)

Master the different types of nouns with interactive lessons and quizzes. Improve your understanding of noun classification, gender, number, and case through practice questions and detailed feedback. Track your progress with visual charts and customize your learning experience with adjustable timers.

**Highlights:** 48+ pages of grammar lessons and rules, 327+ examples with explanations, 450 multiple-choice questions, Topic-based study and mock tests, Detailed test results and progress tracking, Customizable timer settings, Voice-over feature

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Question Bank | $1.99 | one-time |


### Inference Clues

[App page](https://appshunter.io/ios/app/inference-clues-lite/id869101735)

This app helps children develop reading comprehension by teaching them to identify clues and make inferences. It offers a step-by-step, game-like learning experience with a reward system to keep young learners motivated. It's suitable for independent use or with a therapist.

**Highlights:** Builds inference skills step-by-step, Identifies clue words for inferences, Incremental learning with unlocked levels, Guided learning for correct answers, Reward Center for motivation, Detailed reporting for up to 10 students

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Update to 2 Players | $1.99 | one-time |
| Unlock Levels: Inference Ace 2 | $2.99 | one-time |
| Upgrade to 10 Players | $2.99 | one-time |


## Frequently asked questions

### Is Grammar Express free?

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

### Is Inference Clues free?

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

### Which has better reviews, Grammar Express or Inference Clues?

Inference Clues is rated higher. Grammar Express averages 2.0 out of 5 from 1 ratings, while Inference Clues averages 3.3 from 12 ratings.

### Do Grammar Express or Inference Clues have ads?

Neither Grammar Express nor Inference Clues shows ads.

### Which is updated more often, Grammar Express or Inference Clues?

Grammar Express ships an update every 13 months, and Inference Clues every 8 months. Most recently, Grammar Express was updated on November 1, 2026 and Inference Clues on November 8, 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.*