# Math Duel vs Baba Chinese Writing

The clearest difference is price: Math Duel at Free against Baba Chinese Writing's $1.99. Math Duel also leads on iOS requirement (15.0 vs 18.0). Baba Chinese Writing's advantage is ads (none vs shown) and update cadence (every 3 days vs fortnightly). On in-app purchases and device support there is nothing between them.

Math Duel is free to download; Baba Chinese Writing costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Math Duel ships an update fortnightly, Baba Chinese Writing every 3 days. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Math Duel | Baba Chinese Writing |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 21 MB | 33 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Huynh](https://appshunter.io/developer/6779869359) | [锐彬 郑](https://appshunter.io/developer/1736855685) |

## What reviewers say

### Math Duel

[App page](https://appshunter.io/ios/app/math-duel-2-player-math/id6779869357)

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

**In-app purchases:** none


### Baba Chinese Writing

[App page](https://appshunter.io/ios/app/baba-chinese-writing/id6799698873)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Duel free?

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

### Is Baba Chinese Writing free?

Baba Chinese Writing costs $1.99, with no in-app purchases.

### Do Math Duel or Baba Chinese Writing have ads?

Math Duel shows ads; Baba Chinese Writing does not.

### Which is updated more often, Math Duel or Baba Chinese Writing?

Math Duel ships an update fortnightly, and Baba Chinese Writing every 3 days. Most recently, Math Duel was updated on September 29, 2026 and Baba Chinese Writing on October 6, 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.*