# zdSCADA vs TDStat

The clearest difference is update cadence: zdSCADA at every 3 months against TDStat's every 26 months. TDStat's advantage is iOS requirement (12.0 vs 15.6). 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, TDStat every 26 months. The most recent releases landed on September 15, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | zdSCADA | TDStat |
| --- | --- | --- |
| 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 26 months |
| Monetization | Free | — |
| Size | 8 MB | 27 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [zdSCADA, L.P.](https://appshunter.io/developer/1013876841) | [Entouch Controls Inc](https://appshunter.io/developer/784862435) |

## 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


### TDStat

[App page](https://appshunter.io/ios/app/tdstat/id1437832873)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is zdSCADA free?

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

### Is TDStat free?

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

### Do zdSCADA or TDStat have ads?

Neither zdSCADA nor TDStat shows ads.

### Which is updated more often, zdSCADA or TDStat?

zdSCADA ships an update every 3 months, and TDStat every 26 months. Most recently, zdSCADA was updated on September 15, 2026 and TDStat on June 5, 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.*