# Handwriting Mental Math vs 小爱口算

The clearest difference is in-app purchases: Handwriting Mental Math at none against 小爱口算's 1. Handwriting Mental Math also leads on iOS requirement (16.6 vs 18.5). 小爱口算's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. 小爱口算 sells 1 one-off in-app purchase. Handwriting Mental Math asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Handwriting Mental Math | 小爱口算 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | Fortnightly |
| Size | 29 MB | 1 MB |
| Requires iOS | **16.6** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [娟 秦](https://appshunter.io/developer/1493246128) | [功亮 张](https://appshunter.io/developer/1826484363) |

## What reviewers say

### Handwriting Mental Math

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 小爱口算

[App page](https://appshunter.io/ios/app/id6748607355)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $0.99 | one-time |


## Frequently asked questions

### Is Handwriting Mental Math free?

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

### Is 小爱口算 free?

小爱口算 is free to download, with in-app purchases available.

### Do Handwriting Mental Math or 小爱口算 have ads?

Handwriting Mental Math shows ads; 小爱口算 does not.

### Which is updated more often, Handwriting Mental Math or 小爱口算?

Handwriting Mental Math ships an update fortnightly, and 小爱口算 fortnightly. Most recently, Handwriting Mental Math was updated on November 3, 2026 and 小爱口算 on November 5, 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.*