# Ratio Rumble vs Main Idea

The clearest difference is in-app purchases: Ratio Rumble at none against Main Idea's 3. Ratio Rumble also leads on review sentiment (91% vs 71%) and iOS requirement (5.1.1 vs 12.2). Main Idea's advantage is rating (3.7 vs 3.4) and update cadence (every 3 months vs every 8 months). On price, ratings volume and ads there is nothing between them.

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

Main Idea holds the better App Store score, 3.7 against 3.4. Both are backed by a comparable volume of ratings — 7 and 18 respectively. Written reviews complicate that: 91% of Ratio Rumble'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.

Ratio Rumble ships an update every 8 months, Main Idea every 3 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Ratio Rumble | Main Idea |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (7 ratings)](https://appshunter.io/ios/app/ratio-rumble/id592807496/reviews) | **[3.7 (18 ratings)](https://appshunter.io/ios/app/main-idea-sentences/id895683482/reviews)** |
| Number of ratings | 7 | **18** |
| Positive reviews | **90.9% of reviews** | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 45 MB | 22 MB |
| Requires iOS | **5.1.1** | 12.2 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Learning Games Lab, NM State University](https://appshunter.io/developer/337567846) | [Janine Toole](https://appshunter.io/developer/839832427) |

## What reviewers say

### Ratio Rumble

[App page](https://appshunter.io/ios/app/ratio-rumble/id592807496)

Engage in a potion-mixing competition by creating specific ratios to win. This game supports learning about equivalent ratios, rates, fractions, and decimals through contextual situations and visual representations.

**Highlights:** Build custom potions, Create ratios to win, Learn equivalent ratios, Visual ratio representations, Connect ratios to fractions/decimals, Developed by educators

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Ratio Rumble free?

Ratio Rumble 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, Ratio Rumble or Main Idea?

Main Idea is rated higher. Ratio Rumble averages 3.4 out of 5 from 7 ratings, while Main Idea averages 3.7 from 18 ratings.

### Do Ratio Rumble or Main Idea have ads?

Neither Ratio Rumble nor Main Idea shows ads.

### Which is updated more often, Ratio Rumble or Main Idea?

Ratio Rumble ships an update every 8 months, and Main Idea every 3 months. Most recently, Ratio Rumble was updated on November 1, 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.*