# Hydro CM vs blocHub

The clearest difference is update cadence: Hydro CM at every 4 days against blocHub's every 5 weeks. Hydro CM also leads on iOS requirement (12.0 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.

Hydro CM ships an update every 4 days, blocHub every 5 weeks. The most recent releases landed on October 14, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Hydro CM | blocHub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/hydro-cm/id1132190359/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 weeks |
| Monetization | Free | — |
| Size | 361 MB | 106 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bloc Digital](https://appshunter.io/developer/873078731) | [Bloc Solutions](https://appshunter.io/developer/1760494930) |

## What reviewers say

### Hydro CM

[App page](https://appshunter.io/ios/app/hydro-cm/id1132190359)

Explore a 3D augmented reality model of a hydro turbine to understand condition-monitoring solutions. Visualize optimized sensor installations and discover hardware/software that translates data into maintenance actions, protecting your assets and reducing costs.

**Highlights:** Augmented reality turbine visualization, Optimized sensor installation display, Maintenance action insights, Asset protection and optimization, Cost reduction analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### blocHub

[App page](https://appshunter.io/ios/app/blochub/id6596749128)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hydro CM free?

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

### Is blocHub free?

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

### Do Hydro CM or blocHub have ads?

Neither Hydro CM nor blocHub shows ads.

### Which is updated more often, Hydro CM or blocHub?

Hydro CM ships an update every 4 days, and blocHub every 5 weeks. Most recently, Hydro CM was updated on October 14, 2026 and blocHub on September 15, 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.*