# AIFA Smart vs CHW Watch

The clearest difference is update cadence: CHW Watch at every 2 weeks against AIFA Smart's every 5 weeks. CHW Watch also leads on iOS requirement (13.0 vs 15.0). 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.

AIFA Smart ships an update every 5 weeks, CHW Watch every 2 weeks. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | AIFA Smart | CHW Watch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Size | 52 MB | 26 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aifa technology corp.](https://appshunter.io/developer/883572171) | [Shih You tzu](https://appshunter.io/developer/1792443758) |

## What reviewers say

### AIFA Smart

[App page](https://appshunter.io/ios/app/aifa-smart/id1519298173)

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

**In-app purchases:** none


### CHW Watch

[App page](https://appshunter.io/ios/app/chw-watch/id6740995334)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AIFA Smart free?

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

### Is CHW Watch free?

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

### Do AIFA Smart or CHW Watch have ads?

Neither AIFA Smart nor CHW Watch shows ads.

### Which is updated more often, AIFA Smart or CHW Watch?

AIFA Smart ships an update every 5 weeks, and CHW Watch every 2 weeks. Most recently, AIFA Smart was updated on October 25, 2026 and CHW Watch on October 7, 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.*