# LIFAair vs USmart Go

The clearest difference is rating: USmart Go at 2.7 against LIFAair's 2.0. USmart Go also leads on update cadence (every 5 days vs every 3 weeks) and ratings volume (59 vs 4). LIFAair's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, 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.

USmart Go holds the better App Store score, 2.7 against 2.0. That said, the two scores are not equally well evidenced: USmart Go has 59 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 5% of LIFAair's written reviews are positive against 0% of USmart Go's, so the app with the better star average is not the one people write more warmly about.

LIFAair ships an update every 3 weeks, USmart Go every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | LIFAair | USmart Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/lifaair/id1065779983/reviews) | **[2.7 (59 ratings)](https://appshunter.io/ios/app/usmart-go/id1491140916/reviews)** |
| Number of ratings | 4 | **59** |
| Positive reviews | **4.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | **Free** | Ad-supported |
| Size | 140 MB | 11 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BEIJING EDIFIER TECHNOLOGY CO.,LTD.](https://appshunter.io/developer/1065779982) | [龙武 许](https://appshunter.io/developer/1103132264) |

## What reviewers say

### LIFAair

[App page](https://appshunter.io/ios/app/lifaair/id1065779983)

Control and monitor your air purifiers, fans, and humidifiers remotely. Access equipment information, manage operations, and find service support. Links to the official website are also included.

**Highlights:** Remote equipment control, Real-time monitoring, Operation information access, Service support functions, Official website links

**Features:** macOS Compatibility

**In-app purchases:** none


### USmart Go

[App page](https://appshunter.io/ios/app/usmart-go/id1491140916)

Control all your home appliances, both infrared and Wi-Fi connected, from a single app. Remotely manage devices like TVs, air conditioners, lights, and cameras, and receive important notifications like door lock alerts.

**Highlights:** Control infrared appliances (TV, AC), Control Wi-Fi connected devices (lights, curtains), Remote appliance management, Door lock notifications, Remote door unlocking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LIFAair free?

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

### Is USmart Go free?

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

### Which has better reviews, LIFAair or USmart Go?

USmart Go is rated higher. LIFAair averages 2.0 out of 5 from 4 ratings, while USmart Go averages 2.7 from 59 ratings.

### Do LIFAair or USmart Go have ads?

USmart Go shows ads; LIFAair does not.

### Which is updated more often, LIFAair or USmart Go?

LIFAair ships an update every 3 weeks, and USmart Go every 5 days. Most recently, LIFAair was updated on October 24, 2026 and USmart Go 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.*