# Chaipang Subtraction vs Handwriting Practice

The clearest difference is update cadence: Handwriting Practice at weekly against Chaipang Subtraction's every 3 months. Chaipang Subtraction's advantage is iOS requirement (13.0 vs 16.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Chaipang Subtraction sells 1 one-off in-app purchase and Handwriting Practice sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Chaipang Subtraction ships an update every 3 months, Handwriting Practice weekly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Chaipang Subtraction | Handwriting Practice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/handwriting-practice-inkflow/id6747609117/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 136 MB | 83 MB |
| Requires iOS | **13.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wecref Co., Ltd.](https://appshunter.io/developer/1570555584) | [Mouawia Hammo](https://appshunter.io/developer/1810563665) |

## What reviewers say

### Chaipang Subtraction

[App page](https://appshunter.io/ios/app/chaipang-subtraction/id1614401871)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 차이팡 뺄셈 광고제거 | $2.99 | one-time |


### Handwriting Practice

[App page](https://appshunter.io/ios/app/handwriting-practice-inkflow/id6747609117)

This app uses AI to help you improve your handwriting through guided tracing and instant feedback. Practice letters, numbers, words, or custom phrases to achieve beautiful penmanship with ease.

**Highlights:** AI handwriting analysis, Guided letter tracing, Custom word practice, Progress tracking, Instant feedback, Trace letters, numbers, and words

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Yearly Plan | $29.99 | per year |


## Frequently asked questions

### Is Chaipang Subtraction free?

Chaipang Subtraction is free to download, with in-app purchases available.

### Is Handwriting Practice free?

Handwriting Practice is free to download, with in-app purchases available.

### Do Chaipang Subtraction or Handwriting Practice have ads?

Neither Chaipang Subtraction nor Handwriting Practice shows ads.

### Which is updated more often, Chaipang Subtraction or Handwriting Practice?

Chaipang Subtraction ships an update every 3 months, and Handwriting Practice weekly. Most recently, Chaipang Subtraction was updated on October 27, 2026 and Handwriting Practice on October 24, 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.*