# Main Idea vs WhizRead

The clearest difference is in-app purchases: WhizRead at none against Main Idea's 3. WhizRead also leads on update cadence (every 2 weeks vs every 3 months). Main Idea's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Main Idea sells 3 one-off in-app purchases. WhizRead asks for nothing beyond the download.

Main Idea ships an update every 3 months, WhizRead every 2 weeks. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Main Idea | WhizRead |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (19 ratings)](https://appshunter.io/ios/app/main-idea-sentences/id895683482/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 93 MB |
| Requires iOS | 12.2 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Janine Toole](https://appshunter.io/developer/839832427) | [Vizread LLC](https://appshunter.io/developer/1353740511) |

## What reviewers say

### Main Idea

[App page](https://appshunter.io/ios/app/main-idea-sentences/id895683482)

This app helps children in grades 2-5 develop reading comprehension skills by focusing on identifying the main idea of sentences. It uses a fun, game-like approach with step-by-step learning and rewards to keep kids motivated. Designed by educators, it's suitable for both typical and special needs children.

**Highlights:** Step-by-step skill building, Game-like environment, Frustration-free learning, Reward Center for motivation, Parental review and reporting, Over 600 examples, Designed by teachers and researchers

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to 2 Users | $1.99 | one-time |
| Access All Levels | $2.99 | one-time |
| Up to 10 Users | $2.99 | one-time |


### WhizRead

[App page](https://appshunter.io/ios/app/whizread/id1353740512)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Main Idea free?

Main Idea is free to download, with in-app purchases available.

### Is WhizRead free?

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

### Do Main Idea or WhizRead have ads?

Neither Main Idea nor WhizRead shows ads.

### Which is updated more often, Main Idea or WhizRead?

Main Idea ships an update every 3 months, and WhizRead every 2 weeks. Most recently, Main Idea was updated on September 19, 2026 and WhizRead on September 17, 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.*