# Zigbang Smart Doorlock. vs USmart Go

The clearest difference is review sentiment: Zigbang Smart Doorlock. at 50% against USmart Go's 0%. Zigbang Smart Doorlock. also leads on ads (none vs shown) and monetization model (free vs ad-supported). USmart Go's advantage is update cadence (every 5 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zigbang Smart Doorlock. ships an update every 2 months, USmart Go every 5 days. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Zigbang Smart Doorlock. | USmart Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.7 (59 ratings)](https://appshunter.io/ios/app/usmart-go/id1491140916/reviews)** |
| Number of ratings | — | **59** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | **Free** | Ad-supported |
| Size | 25 MB | 11 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ZIGBANG Co., Ltd.](https://appshunter.io/developer/503098738) | [龙武 许](https://appshunter.io/developer/1103132264) |

## What reviewers say

### Zigbang Smart Doorlock.

[App page](https://appshunter.io/ios/app/zigbang-smart-doorlock/id1385963851)

Remotely monitor and control your smart door lock. Check its status, unlock doors, and issue temporary access codes for visitors. Receive real-time notifications about who enters your home.

**Highlights:** Real-time door lock status check, Remote door unlocking, Temporary PIN code generation, Visitor access history tracking, Battery status monitoring, Forced entry notifications

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

**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 Zigbang Smart Doorlock. free?

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

### Is USmart Go free?

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

### Do Zigbang Smart Doorlock. or USmart Go have ads?

USmart Go shows ads; Zigbang Smart Doorlock. does not.

### Which is updated more often, Zigbang Smart Doorlock. or USmart Go?

Zigbang Smart Doorlock. ships an update every 2 months, and USmart Go every 5 days. Most recently, Zigbang Smart Doorlock. was updated on October 10, 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.*