# Grammar Challenge vs Fractions Using Visual Models

The clearest difference is price: Grammar Challenge at $0.99 against Fractions Using Visual Models's $2.99. Grammar Challenge also leads on device support (3 vs 1) and iOS requirement (12.0 vs 15.6). On update cadence, ads and in-app purchases there is nothing between them.

Grammar Challenge costs $0.99 and Fractions Using Visual Models $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Grammar Challenge ships an update every 15 months, Fractions Using Visual Models every 28 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Grammar Challenge | Fractions Using Visual Models |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 15 months** | Every 28 months |
| Monetization | Paid | — |
| Size | 15 MB | 162 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jan Essig](https://appshunter.io/developer/446378172) | [Red Hong](https://appshunter.io/developer/542314714) |

## What reviewers say

### Grammar Challenge

[App page](https://appshunter.io/ios/app/grammar-challenge/id1004313936)

This educational game makes practicing English grammar and spelling enjoyable. It offers various game modes to reinforce understanding of parts of speech, tenses, and sentence structures through matching exercises. Designed for learners of all levels, it boosts concentration and provides a fun way to prepare for lessons.

**Highlights:** Grammar and spelling practice, Matching game modes, Adjustable difficulty, Selectable grammar areas, Reward system, Concentration boosting

**Features:** macOS Compatibility

**In-app purchases:** none


### Fractions Using Visual Models

[App page](https://appshunter.io/ios/app/fractions-using-visual-models/id1167270272)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grammar Challenge free?

Grammar Challenge costs $0.99, with no in-app purchases.

### Is Fractions Using Visual Models free?

Fractions Using Visual Models costs $2.99, with no in-app purchases.

### Do Grammar Challenge or Fractions Using Visual Models have ads?

Neither Grammar Challenge nor Fractions Using Visual Models shows ads.

### Which is updated more often, Grammar Challenge or Fractions Using Visual Models?

Grammar Challenge ships an update every 15 months, and Fractions Using Visual Models every 28 months. Most recently, Grammar Challenge was updated on September 21, 2026 and Fractions Using Visual Models on September 10, 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.*