# MSite Supervisor vs Certchain

The clearest difference is update cadence: Certchain at every 2 weeks against MSite Supervisor's every 2 months. MSite Supervisor's advantage is iOS requirement (12.2 vs 15.1). 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.

MSite Supervisor ships an update every 2 months, Certchain every 2 weeks. The most recent releases landed on July 20, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | MSite Supervisor | Certchain |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 659 MB | 53 MB |
| Requires iOS | **12.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Human Recognition Systems Ltd](https://appshunter.io/developer/1277025432) | [CERTCHAIN LIMITED](https://appshunter.io/developer/1734661238) |

## What reviewers say

### MSite Supervisor

[App page](https://appshunter.io/ios/app/msite-supervisor/id1277025433)

Manage workforce attendance, skills, and training for construction sites, even without an internet connection. Features include offline capabilities, GPS tracking for verification, and automated grant claim reporting.

**Highlights:** Offline attendance and training logging, GPS tracking for site verification, Automated CITB grant claim processing, Employee skills and accreditation checks, QR code scanning for website integration, Add new employee records via app

**Features:** macOS Compatibility

**In-app purchases:** none


### Certchain

[App page](https://appshunter.io/ios/app/certchain/id6478975327)

**In-app purchases:** none


## Frequently asked questions

### Is MSite Supervisor free?

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

### Is Certchain free?

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

### Do MSite Supervisor or Certchain have ads?

Neither MSite Supervisor nor Certchain shows ads.

### Which is updated more often, MSite Supervisor or Certchain?

MSite Supervisor ships an update every 2 months, and Certchain every 2 weeks. Most recently, MSite Supervisor was updated on July 20, 2026 and Certchain on September 10, 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.*