# Rig Count vs Corva

The clearest difference is rating: Corva at 5.0 against Rig Count's 2.3. Corva also leads on update cadence (every 9 days vs every 6 months). Rig Count's advantage is ratings volume (23 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 2.3. That said, the two scores are not equally well evidenced: Rig Count has 23 ratings behind it against 2, so its average is the more settled of the two.

Rig Count ships an update every 6 months, Corva every 9 days. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Rig Count | Corva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (23 ratings)](https://appshunter.io/ios/app/rig-count/id393570114/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/corva/id6736755978/reviews)** |
| Number of ratings | **23** | 2 |
| Positive reviews | 26.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Monetization | **Free** | Ad-supported |
| Size | 38 MB | 179 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Baker Hughes Company](https://appshunter.io/developer/393570118) | [Corva](https://appshunter.io/developer/1194184158) |

## What reviewers say

### Rig Count

[App page](https://appshunter.io/ios/app/rig-count/id393570114)

This app provides an interactive analysis of US rotary rig counts, a key indicator for the drilling industry. It helps users understand demand for products used in hydrocarbon extraction and processing.

**Highlights:** Interactive rig count analysis, Baker Hughes US rotary rig data, Business barometer for drilling industry, Leading indicator of demand, Hydrocarbon extraction insights

**Features:** macOS Compatibility

**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 Rig Count free?

Rig Count 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, Rig Count or Corva?

Corva is rated higher. Rig Count averages 2.3 out of 5 from 23 ratings, while Corva averages 5.0 from 2 ratings.

### Do Rig Count or Corva have ads?

Neither Rig Count nor Corva shows ads.

### Which is updated more often, Rig Count or Corva?

Rig Count ships an update every 6 months, and Corva every 9 days. Most recently, Rig Count was updated on October 20, 2026 and Corva 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.*