# Comprehension Builder. vs BlueFox Edu

The clearest difference is in-app purchases: BlueFox Edu at none against Comprehension Builder.'s 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Comprehension Builder. sells 3 one-off in-app purchases. BlueFox Edu asks for nothing beyond the download.

Comprehension Builder. ships an update every 47 months, BlueFox Edu every 41 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Comprehension Builder. | BlueFox Edu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/comprehension-builder/id1238808362/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 41 months** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 67 MB |
| Requires iOS | 12.2 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Janine Toole](https://appshunter.io/developer/839832427) | [S. E. S. - SCIENTIFIC EDUCATIONAL SYSTEMS LTD](https://appshunter.io/developer/1238285811) |

## What reviewers say

### Comprehension Builder.

[App page](https://appshunter.io/ios/app/comprehension-builder/id1238808362)

This app helps users improve reading comprehension, working memory, and the ability to answer questions about text. It features incremental learning with texts that increase in length and difficulty as skills develop, along with a reward system for motivation. Designed for learners of all ages, including those with special needs or learning English.

**Highlights:** Passage comprehension practice, Working memory development, Answering multiple-choice questions, Incremental learning levels, Reward Center for motivation, 200+ fiction and non-fiction texts, Content designed by teachers

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Two Users | $1.99 | one-time |
| All Levels | $3.99 | one-time |
| 10 Users | $3.99 | one-time |


### BlueFox Edu

[App page](https://appshunter.io/ios/app/bluefox-edu/id1617602533)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Comprehension Builder. free?

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

### Is BlueFox Edu free?

BlueFox Edu is free to download, with no in-app purchases.

### Do Comprehension Builder. or BlueFox Edu have ads?

Neither Comprehension Builder. nor BlueFox Edu shows ads.

### Which is updated more often, Comprehension Builder. or BlueFox Edu?

Comprehension Builder. ships an update every 47 months, and BlueFox Edu every 41 months. Most recently, Comprehension Builder. was updated on October 14, 2026 and BlueFox Edu on October 15, 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.*