# i清華 vs CoughIt

The clearest difference is update cadence: CoughIt at every 4 days against i清華's every 2 months. 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.

i清華 ships an update every 2 months, CoughIt every 4 days. Both last shipped on September 18, 2026.

## The numbers

| Metric | i清華 | CoughIt |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 5 MB | 50 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Tsing Hua University](https://appshunter.io/developer/1390425946) | [Dreamality LLC](https://appshunter.io/developer/1854083193) |

## What reviewers say

### i清華

[App page](https://appshunter.io/ios/app/i/id6459477390)

**Features:** macOS Compatibility

**In-app purchases:** none


### CoughIt

[App page](https://appshunter.io/ios/app/coughit/id6755471885)

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

**In-app purchases:** none


## Frequently asked questions

### Is i清華 free?

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

### Is CoughIt free?

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

### Do i清華 or CoughIt have ads?

Neither i清華 nor CoughIt shows ads.

### Which is updated more often, i清華 or CoughIt?

i清華 ships an update every 2 months, and CoughIt every 4 days. Most recently, i清華 was updated on September 18, 2026 and CoughIt on September 18, 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.*