# Math Joy vs Main Idea

The clearest difference is rating: Math Joy at 4.4 against Main Idea's 3.8. Main Idea's advantage is review sentiment (71% vs 33%) and update cadence (every 3 months vs every 28 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Math Joy sells 1 one-off in-app purchase and Main Idea sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Math Joy holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 11 and 19 respectively. Written reviews complicate that: 33% of Math Joy's written reviews are positive against 71% of Main Idea's, so the app with the better star average is not the one people write more warmly about.

Math Joy ships an update every 28 months, Main Idea every 3 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Math Joy | Main Idea |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (11 ratings)](https://appshunter.io/ios/app/math-joy-kids-learning-games/id662503354/reviews)** | [3.8 (19 ratings)](https://appshunter.io/ios/app/main-idea-sentences/id895683482/reviews) |
| Number of ratings | 11 | **19** |
| Positive reviews | 33.3% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 22 MB |
| Requires iOS | 15.0 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stoyan Hristov](https://appshunter.io/developer/584595816) | [Janine Toole](https://appshunter.io/developer/839832427) |

## What reviewers say

### Math Joy

[App page](https://appshunter.io/ios/app/math-joy-kids-learning-games/id662503354)

This app offers a fun and engaging way for children to build foundational math skills. It uses interactive games, visual aids, and a reward system to make learning numbers, addition, subtraction, shapes, and more enjoyable.

**Highlights:** Counting items, Addition and subtraction, Identifying colors and shapes, Comparing items and positions, Reward system with stars, Visual aids with animals

**Features:** macOS Compatibility, Family Sharing, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Levels | $7.99 | one-time |


### 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 |


## Frequently asked questions

### Is Math Joy free?

Math Joy is free to download, with in-app purchases available.

### Is Main Idea free?

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

### Which has better reviews, Math Joy or Main Idea?

Math Joy is rated higher. Math Joy averages 4.4 out of 5 from 11 ratings, while Main Idea averages 3.8 from 19 ratings.

### Do Math Joy or Main Idea have ads?

Neither Math Joy nor Main Idea shows ads.

### Which is updated more often, Math Joy or Main Idea?

Math Joy ships an update every 28 months, and Main Idea every 3 months. Most recently, Math Joy was updated on November 6, 2026 and Main Idea on November 2, 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.*