# Corva Legacy vs Pason

The clearest difference is ads: Pason at none against Corva Legacy's shown. Pason also leads on monetization model (free vs ad-supported). Corva Legacy's advantage is rating (5.0 vs 4.6). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Corva Legacy holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 15 and 21 respectively.

Corva Legacy ships an update every 2 months, Pason every 6 weeks. The most recent releases landed on October 4, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Corva Legacy | Pason |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (15 ratings)](https://appshunter.io/ios/app/corva-legacy/id1194184159/reviews)** | [4.6 (21 ratings)](https://appshunter.io/ios/app/pason/id6502012087/reviews) |
| Number of ratings | 15 | **21** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 37 MB | 61 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Corva](https://appshunter.io/developer/1194184158) | [Pason Systems Corp](https://appshunter.io/developer/867039732) |

## What reviewers say

### Corva Legacy

[App page](https://appshunter.io/ios/app/corva-legacy/id1194184159)

This platform provides real-time data and analytics for the oil and gas industry. It enables customers and vendors to build custom applications and dashboards for enhanced drilling and completion operations.

**Highlights:** Real-time data and analytics, App and dashboard development, Drilling operations enhancement, Completion operations improvement, Customer and vendor collaboration

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Corva Legacy free?

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

### Is Pason free?

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

### Which has better reviews, Corva Legacy or Pason?

Corva Legacy is rated higher. Corva Legacy averages 5.0 out of 5 from 15 ratings, while Pason averages 4.6 from 21 ratings.

### Do Corva Legacy or Pason have ads?

Corva Legacy shows ads; Pason does not.

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

Corva Legacy ships an update every 2 months, and Pason every 6 weeks. Most recently, Corva Legacy was updated on October 4, 2026 and Pason on October 14, 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.*