# 字课 vs Modu

The clearest difference is update cadence: Modu at weekly against 字课's fortnightly. Modu also leads on iOS requirement (15.5 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

字课 ships an update fortnightly, Modu weekly. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 字课 | Modu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 81 MB | 156 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [帅 刘](https://appshunter.io/developer/696578727) | [雪寒 周](https://appshunter.io/developer/1892756116) |

## What reviewers say

### 字课

[App page](https://appshunter.io/ios/app/learn-chinese-writing/id6784051034)

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

**In-app purchases:** none


### Modu

[App page](https://appshunter.io/ios/app/modu-chinese-reader/id6788653501)

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

**In-app purchases:** none


## Frequently asked questions

### Is 字课 free?

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

### Is Modu free?

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

### Do 字课 or Modu have ads?

Neither 字课 nor Modu shows ads.

### Which is updated more often, 字课 or Modu?

字课 ships an update fortnightly, and Modu weekly. Most recently, 字课 was updated on October 5, 2026 and Modu 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.*