# ZKBio Time Cloud vs M² Smart

The clearest difference is update cadence: M² Smart at every 3 weeks against ZKBio Time Cloud's every 2 months. 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.

ZKBio Time Cloud ships an update every 2 months, M² Smart every 3 weeks. The most recent releases landed on October 6, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | ZKBio Time Cloud | M² Smart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 27 MB | 248 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ZKTeco Inc.](https://appshunter.io/developer/955313767) | [Muslim Smart Wearable Company](https://appshunter.io/developer/1853781846) |

## What reviewers say

### ZKBio Time Cloud

[App page](https://appshunter.io/ios/app/zkbio-time-cloud/id6744720888)

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

**In-app purchases:** none


### M² Smart

[App page](https://appshunter.io/ios/app/m-smart/id6755520193)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZKBio Time Cloud free?

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

### Is M² Smart free?

M² Smart is free to download, with no in-app purchases.

### Do ZKBio Time Cloud or M² Smart have ads?

Neither ZKBio Time Cloud nor M² Smart shows ads.

### Which is updated more often, ZKBio Time Cloud or M² Smart?

ZKBio Time Cloud ships an update every 2 months, and M² Smart every 3 weeks. Most recently, ZKBio Time Cloud was updated on October 6, 2026 and M² Smart on September 26, 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.*