# 環愛國際教育 vs 腦珠算(加減法) 題目練習

The clearest difference is price: 環愛國際教育 at Free against 腦珠算(加減法) 題目練習's $4.99. 環愛國際教育 also leads on update cadence (every 4 months vs every 32 months). 腦珠算(加減法) 題目練習's advantage is iOS requirement (8.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

環愛國際教育 is free to download; 腦珠算(加減法) 題目練習 costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

環愛國際教育 ships an update every 4 months, 腦珠算(加減法) 題目練習 every 32 months. Both last shipped on October 14, 2026.

## The numbers

| Metric | 環愛國際教育 | 腦珠算(加減法) 題目練習 |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/id1419936734/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 32 months |
| Monetization | — | Paid |
| Size | 197 MB | 9 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) | [Hamster Force Multimedia Ltd.](https://appshunter.io/developer/443416476) |

## What reviewers say

### 環愛國際教育

[App page](https://appshunter.io/ios/app/id1227974674)

**Features:** macOS Compatibility

**In-app purchases:** none


### 腦珠算(加減法) 題目練習

[App page](https://appshunter.io/ios/app/id1419936734)

This app offers a comprehensive abacus mental arithmetic training tool with six essential practice types. Users can create custom practice sessions, generate random questions and answers, and export them as PDFs for offline use. It tracks progress and provides analysis to help users focus on their weak areas.

**Highlights:** Six abacus mental arithmetic practice types, Customizable random question generation, PDF export for offline practice, Detailed progress tracking and analysis, Practice and Challenge modes, Test paper editor

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 環愛國際教育 free?

環愛國際教育 is free to download, with no in-app purchases.

### Is 腦珠算(加減法) 題目練習 free?

腦珠算(加減法) 題目練習 costs $4.99, with no in-app purchases.

### Do 環愛國際教育 or 腦珠算(加減法) 題目練習 have ads?

Neither 環愛國際教育 nor 腦珠算(加減法) 題目練習 shows ads.

### Which is updated more often, 環愛國際教育 or 腦珠算(加減法) 題目練習?

環愛國際教育 ships an update every 4 months, and 腦珠算(加減法) 題目練習 every 32 months. Most recently, 環愛國際教育 was updated on October 14, 2026 and 腦珠算(加減法) 題目練習 on October 14, 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.*