# ISensor vs ZKBio Zexus

The clearest difference is update cadence: ISensor at every 4 weeks against ZKBio Zexus's every 4 months. ISensor also leads on iOS requirement (13.0 vs 15.0). On price, ads, 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.

ISensor ships an update every 4 weeks, ZKBio Zexus every 4 months. The most recent releases landed on September 8, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | ISensor | ZKBio Zexus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Size | 41 MB | 130 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [荣强 王](https://appshunter.io/developer/1583195280) | [ZKTeco Inc.](https://appshunter.io/developer/955313767) |

## What reviewers say

### ISensor

[App page](https://appshunter.io/ios/app/isensor/id6443441107)

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

**In-app purchases:** none


### ZKBio Zexus

[App page](https://appshunter.io/ios/app/zkbio-zexus/id6475019565)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISensor free?

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

### Is ZKBio Zexus free?

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

### Do ISensor or ZKBio Zexus have ads?

Neither ISensor nor ZKBio Zexus shows ads.

### Which is updated more often, ISensor or ZKBio Zexus?

ISensor ships an update every 4 weeks, and ZKBio Zexus every 4 months. Most recently, ISensor was updated on September 8, 2026 and ZKBio Zexus on September 22, 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.*