# Chinese@OU vs Smart SIS

The clearest difference is update cadence: Smart SIS at weekly against Chinese@OU's every 16 months. Chinese@OU's advantage is iOS requirement (12.0 vs 26.0). 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.

Chinese@OU ships an update every 16 months, Smart SIS weekly. The most recent releases landed on October 9, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Chinese@OU | Smart SIS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Weekly** |
| Size | 533 MB | 29 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Open University](https://appshunter.io/developer/336747246) | [Intellite](https://appshunter.io/developer/1864542386) |

## What reviewers say

### Chinese@OU

[App page](https://appshunter.io/ios/app/chineseou/id6443920274)

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

**In-app purchases:** none


### Smart SIS

[App page](https://appshunter.io/ios/app/smart-sis/id6759192558)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chinese@OU free?

Chinese@OU is free to download, with no in-app purchases.

### Is Smart SIS free?

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

### Do Chinese@OU or Smart SIS have ads?

Neither Chinese@OU nor Smart SIS shows ads.

### Which is updated more often, Chinese@OU or Smart SIS?

Chinese@OU ships an update every 16 months, and Smart SIS weekly. Most recently, Chinese@OU was updated on October 9, 2026 and Smart SIS on October 25, 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.*