# 数学口算HD vs Mental Arithmetic Challenge

The clearest difference is in-app purchases: Mental Arithmetic Challenge at none against 数学口算HD's 7. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 数学口算HD sells 7 one-off in-app purchases. Mental Arithmetic Challenge asks for nothing beyond the download.

## The numbers

| Metric | 数学口算HD | Mental Arithmetic Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/hd/id1632726087/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 34 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [摇摇 章](https://appshunter.io/developer/1570032236) | [Zhuhai Record Yi Technology Co.,Ltd.](https://appshunter.io/developer/1638483191) |

## What reviewers say

### 数学口算HD

[App page](https://appshunter.io/ios/app/hd/id1632726087)

This app simulates paper-based math drills for elementary students, offering customizable practice tests, automatic grading, and detailed error analysis. It covers addition, subtraction, multiplication, division, decimals, and fractions for grades 1-6, with a large question bank and printable options.

**Highlights:** Simulated paper test experience, Customizable test generation, Automatic grading and error analysis, Printable practice sheets, Grade-level specific question bank, Handwriting practice area

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一年级口算 | $2.99 | one-time |
| 二年级口算 | $2.99 | one-time |
| 三年级口算 | $2.99 | one-time |
| 四年级口算 | $2.99 | one-time |
| 五年级口算 | $2.99 | one-time |
| 六年级口算 | $2.99 | one-time |
| 数学口算至尊VIP | $4.99 | one-time |


### Mental Arithmetic Challenge

[App page](https://appshunter.io/ios/app/mental-arithmetic-challenge/id1668985552)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 数学口算HD free?

数学口算HD is free to download, with in-app purchases available.

### Is Mental Arithmetic Challenge free?

Mental Arithmetic Challenge is free to download, with no in-app purchases.

### Do 数学口算HD or Mental Arithmetic Challenge have ads?

Neither 数学口算HD nor Mental Arithmetic Challenge shows ads.

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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.*