# ZSmart vs Kaadas Lock

The clearest difference is review sentiment: Kaadas Lock at 25% against ZSmart's 0%. ZSmart's advantage is iOS requirement (11.0 vs 13.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

ZSmart ships an update every 7 months, Kaadas Lock every 10 months. The most recent releases landed on July 5, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | ZSmart | Kaadas Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (117 ratings)](https://appshunter.io/ios/app/zsmart/id1484043889/reviews)** | — |
| Number of ratings | **117** | — |
| Positive reviews | 0.0% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 10 months |
| Monetization | Free | Free |
| Size | 169 MB | 183 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [XiaMen Teco Electronic Technology Co., Ltd.](https://appshunter.io/developer/955313767) | [Shenzhen Kaadas Intelligent Technology Co.,Ltd](https://appshunter.io/developer/1155786021) |

## What reviewers say

### ZSmart

[App page](https://appshunter.io/ios/app/zsmart/id1484043889)

Control and manage your ZKTeco smart home devices from a single app. Monitor security cameras, locks, and alarms, and automate lighting and plugs with voice commands via compatible smart assistants.

**Highlights:** Remote lock and unlock management, Real-time security camera viewing, See and speak to visitors via video doorbell, Smart alarm system control, Adjustable smart bulb brightness and color, Automated smart plug scheduling, Voice control with Amazon Echo/Google Nest

**Features:** macOS Compatibility

**In-app purchases:** none


### Kaadas Lock

[App page](https://appshunter.io/ios/app/kaadas-lock/id6497878509)

Manage your smart door locks with real-time security updates and convenient user controls. Some models offer doorbell intercom and remote unlocking for enhanced convenience and safety.

**Highlights:** Real-time security log reports, Convenient user management, Doorbell intercom support, Remote unlocking capabilities

**In-app purchases:** none


## Frequently asked questions

### Is ZSmart free?

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

### Is Kaadas Lock free?

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

### Do ZSmart or Kaadas Lock have ads?

Neither ZSmart nor Kaadas Lock shows ads.

### Which is updated more often, ZSmart or Kaadas Lock?

ZSmart ships an update every 7 months, and Kaadas Lock every 10 months. Most recently, ZSmart was updated on July 5, 2026 and Kaadas Lock on August 17, 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.*