# Handwriting Mental Math vs 数学口算HD

The clearest difference is in-app purchases: Handwriting Mental Math at none against 数学口算HD's 7. Handwriting Mental Math also leads on update cadence (fortnightly vs every 6 months). 数学口算HD's advantage is ads (none vs shown) and iOS requirement (9.0 vs 16.6). On price and device support there is nothing between them.

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

Handwriting Mental Math ships an update fortnightly, 数学口算HD every 6 months. The most recent releases landed on June 4, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Handwriting Mental Math | 数学口算HD |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 4 MB |
| Requires iOS | 16.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [娟 秦](https://appshunter.io/developer/1493246128) | [摇摇 章](https://appshunter.io/developer/1570032236) |

## What reviewers say

### Handwriting Mental Math

[App page](https://appshunter.io/ios/app/handwriting-mental-math/id1505292791)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Handwriting Mental Math free?

Handwriting Mental Math is free to download, with no in-app purchases.

### Is 数学口算HD free?

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

### Do Handwriting Mental Math or 数学口算HD have ads?

Handwriting Mental Math shows ads; 数学口算HD does not.

### Which is updated more often, Handwriting Mental Math or 数学口算HD?

Handwriting Mental Math ships an update fortnightly, and 数学口算HD every 6 months. Most recently, Handwriting Mental Math was updated on June 4, 2026 and 数学口算HD on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*