# Max Drilling vs Corva

The clearest difference is rating: Corva at 5.0 against Max Drilling's 3.2. Corva also leads on update cadence (every 10 days vs every 4 months). Max Drilling's advantage is ratings volume (22 vs 2) and monetization model (free vs ad-supported). 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.

Corva holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: Max Drilling has 22 ratings behind it against 2, so its average is the more settled of the two.

Max Drilling ships an update every 4 months, Corva every 10 days. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Max Drilling | Corva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (22 ratings)](https://appshunter.io/ios/app/max-drilling/id1184959427/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/corva/id6736755978/reviews)** |
| Number of ratings | **22** | 2 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | **Free** | Ad-supported |
| Size | 208 MB | 178 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NOV Inc.](https://appshunter.io/developer/578550101) | [Corva](https://appshunter.io/developer/1194184158) |

## What reviewers say

### Max Drilling

[App page](https://appshunter.io/ios/app/max-drilling/id1184959427)

Monitor drilling operations in real-time with instant access to active and historical well data. Visualize drilling parameters, view rig reports, and communicate securely with your team from anywhere.

**Highlights:** 1-second data streaming, Customizable data visualization, Time and depth views, Lagged channel tracing, Rig and well reports, Integrated chat, Collaborative notes

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

**In-app purchases:** none


### Corva

[App page](https://appshunter.io/ios/app/corva/id6736755978)

This app provides real-time drilling and completions optimization for the oil and gas industry. It offers dynamic visualizations and data-driven insights to enhance operational efficiency and well performance.

**Highlights:** Digital Drilling visualization, Digital Completions operations view, Real-time drilling dynamics tracking, Treatment Plot for wellhead pressure and fluid volumes, AI-powered tools for operational excellence

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

**In-app purchases:** none


## Frequently asked questions

### Is Max Drilling free?

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

### Is Corva free?

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

### Which has better reviews, Max Drilling or Corva?

Corva is rated higher. Max Drilling averages 3.2 out of 5 from 22 ratings, while Corva averages 5.0 from 2 ratings.

### Do Max Drilling or Corva have ads?

Neither Max Drilling nor Corva shows ads.

### Which is updated more often, Max Drilling or Corva?

Max Drilling ships an update every 4 months, and Corva every 10 days. Most recently, Max Drilling was updated on September 23, 2026 and Corva 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.*