# Math Skills Builder Lite vs Rocomi, 로코미

The clearest difference is in-app purchases: Rocomi, 로코미 at none against Math Skills Builder Lite's 1. Rocomi, 로코미 also leads on update cadence (every 5 months vs every 19 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Math Skills Builder Lite sells 1 one-off in-app purchase. Rocomi, 로코미 asks for nothing beyond the download.

Math Skills Builder Lite ships an update every 19 months, Rocomi, 로코미 every 5 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Math Skills Builder Lite | Rocomi, 로코미 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/math-skills-builder-lite/id1277897625/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 5 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 191 MB | 76 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Attainment Company](https://appshunter.io/developer/403989333) | [Life &Science Co.,Ltd.](https://appshunter.io/developer/1121866034) |

## What reviewers say

### Math Skills Builder Lite

[App page](https://appshunter.io/ios/app/math-skills-builder-lite/id1277897625)

This app helps students apply early numeracy skills to solve real-world math problems. It uses math stories and concrete strategies to teach when to add or subtract. Research indicates the program is highly effective for developing problem-solving abilities.

**Highlights:** Real-world math problem scenarios, Early numeracy skill application, Concrete addition/subtraction strategies, Multiple learning modes, Research-backed effectiveness

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $59.99 | one-time |


### Rocomi, 로코미

[App page](https://appshunter.io/ios/app/rocomi/id1280194660)

Learn basic coding through interactive tutorials and control robotic sensors. This app uses a drag-and-drop interface, making coding simpler than Scratch. It enables control of the main board and various sensors of Robotori via Bluetooth 4.0.

**Highlights:** Learn basic coding, Tutorial format, Control Robotori sensors, Drag and drop interface, Bluetooth 4.0 support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Skills Builder Lite free?

Math Skills Builder Lite is free to download, with in-app purchases available.

### Is Rocomi, 로코미 free?

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

### Do Math Skills Builder Lite or Rocomi, 로코미 have ads?

Neither Math Skills Builder Lite nor Rocomi, 로코미 shows ads.

### Which is updated more often, Math Skills Builder Lite or Rocomi, 로코미?

Math Skills Builder Lite ships an update every 19 months, and Rocomi, 로코미 every 5 months. Most recently, Math Skills Builder Lite was updated on October 5, 2026 and Rocomi, 로코미 on October 4, 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.*