# WellDatabase vs zdSCADA

The clearest difference is rating: zdSCADA at 4.3 against WellDatabase's 2.9. zdSCADA also leads on in-app purchases (none vs 4). WellDatabase's advantage is ratings volume (14 vs 3) and iOS requirement (8.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. WellDatabase sells 4 one-off in-app purchases. zdSCADA asks for nothing beyond the download.

zdSCADA holds the better App Store score, 4.3 against 2.9. Both are backed by a comparable volume of ratings — 14 and 3 respectively.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 11, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | WellDatabase | zdSCADA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (14 ratings)](https://appshunter.io/ios/app/welldatabase/id553328644/reviews) | **[4.3 (3 ratings)](https://appshunter.io/ios/app/zdscada/id1013876842/reviews)** |
| Number of ratings | **14** | 3 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 31 MB | 8 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ctrlDev](https://appshunter.io/developer/379776628) | [zdSCADA, L.P.](https://appshunter.io/developer/1013876841) |

## What reviewers say

### WellDatabase

[App page](https://appshunter.io/ios/app/welldatabase/id553328644)

Access a vast database of over 5 million oil and gas wells across North America. Search for permits, production, completion data, and view shale plays and pipelines on a map. Download well files, including logs, for offline analysis.

**Highlights:** Search 5 million+ wells, View permits and production data, Access completion details, Map shale plays and pipelines, Download well files and logs

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Subscription | $14.99 | one-time |
| Basic Subscription | $99.99 | one-time |
| Premium Subscription Upgrade | $149.99 | one-time |
| Premium Subscription | $249.99 | one-time |


### 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


## Frequently asked questions

### Is WellDatabase free?

WellDatabase is free to download, with in-app purchases available.

### Is zdSCADA free?

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

### Which has better reviews, WellDatabase or zdSCADA?

zdSCADA is rated higher. WellDatabase averages 2.9 out of 5 from 14 ratings, while zdSCADA averages 4.3 from 3 ratings.

### Do WellDatabase or zdSCADA have ads?

Neither WellDatabase nor zdSCADA shows ads.

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

WellDatabase ships an update every 3 months, and zdSCADA every 3 months. Most recently, WellDatabase was updated on October 11, 2026 and zdSCADA on October 19, 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.*