# zdSCADA vs Rockbridge Petroleum

The clearest difference is update cadence: Rockbridge Petroleum at every 3 weeks against zdSCADA's every 3 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.

zdSCADA ships an update every 3 months, Rockbridge Petroleum every 3 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | zdSCADA | Rockbridge Petroleum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/zdscada/id1013876842/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 8 MB | 34 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [zdSCADA, L.P.](https://appshunter.io/developer/1013876841) | [Rockbridge Petroleum](https://appshunter.io/developer/1782798179) |

## What reviewers say

### zdSCADA

[App page](https://appshunter.io/ios/app/zdscada/id1013876842)

This mobile application offers data collection and monitoring for electronic devices within the oil and gas sector. It extends a web-based solution to a mobile platform, catering exclusively to existing customers.

**Highlights:** Data collection, Device monitoring, Oil and gas industry focus, Mobile platform extension, Web-based solution integration

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

**In-app purchases:** none


### Rockbridge Petroleum

[App page](https://appshunter.io/ios/app/rockbridge-petroleum/id6738892994)

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

**In-app purchases:** none


## Frequently asked questions

### Is zdSCADA free?

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

### Is Rockbridge Petroleum free?

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

### Do zdSCADA or Rockbridge Petroleum have ads?

Neither zdSCADA nor Rockbridge Petroleum shows ads.

### Which is updated more often, zdSCADA or Rockbridge Petroleum?

zdSCADA ships an update every 3 months, and Rockbridge Petroleum every 3 weeks. Most recently, zdSCADA was updated on October 24, 2026 and Rockbridge Petroleum on October 28, 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.*