# SUFN Smart vs YO

The clearest difference is update cadence: SUFN Smart at every 8 days against YO's every 3 months. SUFN Smart also leads on iOS requirement (12.1 vs 14.0). 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.

SUFN Smart ships an update every 8 days, YO every 3 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | SUFN Smart | YO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 months |
| Size | 26 MB | 409 MB |
| Requires iOS | **12.1** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhongshan Yanfeng Lighting Technology Co. Ltd.](https://appshunter.io/developer/1051741166) | [勇 邹](https://appshunter.io/developer/1600180960) |

## What reviewers say

### SUFN Smart

[App page](https://appshunter.io/ios/app/sufn-smart/id1597111757)

**Features:** macOS Compatibility

**In-app purchases:** none


### YO

[App page](https://appshunter.io/ios/app/yo-smart/id1602450099)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SUFN Smart free?

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

### Is YO free?

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

### Do SUFN Smart or YO have ads?

Neither SUFN Smart nor YO shows ads.

### Which is updated more often, SUFN Smart or YO?

SUFN Smart ships an update every 8 days, and YO every 3 months. Most recently, SUFN Smart was updated on October 27, 2026 and YO on October 27, 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.*