# ZK SmartKey vs Radar Assistant

The clearest difference is iOS requirement: ZK SmartKey at 9.0 against Radar Assistant's 12.0. 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.

ZK SmartKey ships an update monthly, Radar Assistant every 4 weeks. The most recent releases landed on September 10, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | ZK SmartKey | Radar Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (13 ratings)](https://appshunter.io/ios/app/zk-smartkey/id1399544296/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 145 MB | 50 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ZKTeco Inc.](https://appshunter.io/developer/955313767) | [荣强 王](https://appshunter.io/developer/1583195280) |

## What reviewers say

### ZK SmartKey

[App page](https://appshunter.io/ios/app/zk-smartkey/id1399544296)

Manage your smart door locks from your mobile device. Grant temporary access, register users via fingerprint or PIN, and track entry records. Control lock volume and reset settings remotely.

**Highlights:** Visitor mode with temporary passcode sharing, User registration via fingerprint, card, or PIN, Access records check (who and when), Time zone access control, Adjustable volume settings (high, low, mute), Remote lock initialization and normal open, Real-time battery status monitoring

**In-app purchases:** none


### Radar Assistant

[App page](https://appshunter.io/ios/app/radar-assistant/id1540081360)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZK SmartKey free?

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

### Is Radar Assistant free?

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

### Do ZK SmartKey or Radar Assistant have ads?

Neither ZK SmartKey nor Radar Assistant shows ads.

### Which is updated more often, ZK SmartKey or Radar Assistant?

ZK SmartKey ships an update monthly, and Radar Assistant every 4 weeks. Most recently, ZK SmartKey was updated on September 10, 2026 and Radar Assistant on September 16, 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.*