# ZK SmartKey vs ITBS CPA

The clearest difference is iOS requirement: ZK SmartKey at 9.0 against ITBS CPA's 15.6. 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, ITBS CPA every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | ZK SmartKey | ITBS CPA |
| --- | --- | --- |
| 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 3 weeks** |
| Monetization | Free | — |
| Size | 145 MB | 27 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ZKTeco Inc.](https://appshunter.io/developer/955313767) | [ITBS Information Technology Business Solutions Corp.](https://appshunter.io/developer/1792363280) |

## 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


### ITBS CPA

[App page](https://appshunter.io/ios/app/itbs-cpa/id6753594233)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZK SmartKey free?

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

### Is ITBS CPA free?

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

### Do ZK SmartKey or ITBS CPA have ads?

Neither ZK SmartKey nor ITBS CPA shows ads.

### Which is updated more often, ZK SmartKey or ITBS CPA?

ZK SmartKey ships an update monthly, and ITBS CPA every 3 weeks. Most recently, ZK SmartKey was updated on October 25, 2026 and ITBS CPA on October 25, 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.*