# Pason vs Corva

The clearest difference is rating: Corva at 5.0 against Pason's 4.6. Corva also leads on update cadence (every 10 days vs every 5 weeks). Pason's advantage is monetization model (free vs ad-supported) and ratings volume (20 vs 2). 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 4.6. That said, the two scores are not equally well evidenced: Pason has 20 ratings behind it against 2, so its average is the more settled of the two.

Pason ships an update every 5 weeks, Corva every 10 days. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Pason | Corva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (20 ratings)](https://appshunter.io/ios/app/pason/id6502012087/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/corva/id6736755978/reviews)** |
| Number of ratings | **20** | 2 |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | **Free** | Ad-supported |
| Size | 61 MB | 178 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pason Systems Corp](https://appshunter.io/developer/867039732) | [Corva](https://appshunter.io/developer/1194184158) |

## What reviewers say

### Pason

[App page](https://appshunter.io/ios/app/pason/id6502012087)

Access real-time drilling data for your active wells anytime, anywhere. Securely view well information, customize data displays, and manage memos for informed, time-sensitive decisions.

**Highlights:** Real-time drilling data access, Secure data transmission, Customizable data display, Well memo viewing and sending, 1-second data updates, Drilled depth per well

**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 Pason free?

Pason 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, Pason or Corva?

Corva is rated higher. Pason averages 4.6 out of 5 from 20 ratings, while Corva averages 5.0 from 2 ratings.

### Do Pason or Corva have ads?

Neither Pason nor Corva shows ads.

### Which is updated more often, Pason or Corva?

Pason ships an update every 5 weeks, and Corva every 10 days. Most recently, Pason was updated on September 14, 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.*