# Comprehension Builder. vs Create & Sell Accelerator

The clearest difference is in-app purchases: Create & Sell Accelerator at none against Comprehension Builder.'s 3. Create & Sell Accelerator also leads on update cadence (every 4 months vs every 47 months). Comprehension Builder.'s advantage is iOS requirement (12.2 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Comprehension Builder. sells 3 one-off in-app purchases. Create & Sell Accelerator asks for nothing beyond the download.

Comprehension Builder. ships an update every 47 months, Create & Sell Accelerator every 4 months. The most recent releases landed on June 25, 2026 and July 8, 2026 respectively.

## The numbers

| Metric | Comprehension Builder. | Create & Sell Accelerator |
| --- | --- | --- |
| 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 4 months** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 128 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Janine Toole](https://appshunter.io/developer/839832427) | [Carrie & Co Ltd](https://appshunter.io/developer/1649971462) |

## 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 |


### Create & Sell Accelerator

[App page](https://appshunter.io/ios/app/create-and-sell-accelerator/id6746410443)

**In-app purchases:** none


## Frequently asked questions

### Is Comprehension Builder. free?

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

### Is Create & Sell Accelerator free?

Create & Sell Accelerator is free to download, with no in-app purchases.

### Do Comprehension Builder. or Create & Sell Accelerator have ads?

Neither Comprehension Builder. nor Create & Sell Accelerator shows ads.

### Which is updated more often, Comprehension Builder. or Create & Sell Accelerator?

Comprehension Builder. ships an update every 47 months, and Create & Sell Accelerator every 4 months. Most recently, Comprehension Builder. was updated on June 25, 2026 and Create & Sell Accelerator on July 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.*