# Marble Math Multiplication vs Main Idea

The clearest difference is rating: Marble Math Multiplication at 4.7 against Main Idea's 3.7. Marble Math Multiplication also leads on in-app purchases (none vs 3) and review sentiment (95% vs 71%). Main Idea's advantage is device support (3 vs 1). On price and ads there is nothing between them.

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

Marble Math Multiplication holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Marble Math Multiplication has 963 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 95% of Marble Math Multiplication's written reviews are positive against 71% of Main Idea's.

Marble Math Multiplication ships an update every 2 months, Main Idea every 3 months. The most recent releases landed on November 13, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Marble Math Multiplication | Main Idea |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (963 ratings)](https://appshunter.io/ios/app/marble-math-multiplication/id575981492/reviews)** | [3.7 (18 ratings)](https://appshunter.io/ios/app/main-idea-sentences/id895683482/reviews) |
| Number of ratings | **963** | 18 |
| Positive reviews | **94.7% of reviews** | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 78 MB | 22 MB |
| Requires iOS | **8.0** | 12.2 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Artgig Studio](https://appshunter.io/developer/436414537) | [Janine Toole](https://appshunter.io/developer/839832427) |

## What reviewers say

### Marble Math Multiplication

[App page](https://appshunter.io/ios/app/marble-math-multiplication/id575981492)

Practice multiplication skills by navigating a marble through challenging mazes. Solve problems, collect numbers, and earn bonuses while avoiding obstacles. Customize practice to focus on specific times tables.

**Highlights:** Maze navigation gameplay, Multiplication problem solving, Collect numbers and bonuses, Avoid in-game obstacles, Replay incorrect answers, Customize specific times tables

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and engaging
- 🚀 Effective for learning math
- 💡 Creative and interactive
- 🎓 Helps improve math skills

**What reviewers complain about**

- 🤔 Basic or simple gameplay
- 🙄 Gets boring over time

**Reported bugs**

- Occasional crashes or freezes
- Compatibility issues on older devices

**Requested features**

- More difficulty levels
- Additional math operations
- Customizable settings for different age groups


### 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 Marble Math Multiplication free?

Marble Math Multiplication is free to download, with no in-app purchases.

### Is Main Idea free?

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

### Which has better reviews, Marble Math Multiplication or Main Idea?

Marble Math Multiplication is rated higher. Marble Math Multiplication averages 4.7 out of 5 from 963 ratings, while Main Idea averages 3.7 from 18 ratings.

### Do Marble Math Multiplication or Main Idea have ads?

Neither Marble Math Multiplication nor Main Idea shows ads.

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

Marble Math Multiplication ships an update every 2 months, and Main Idea every 3 months. Most recently, Marble Math Multiplication was updated on November 13, 2026 and Main Idea on November 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.*