# Mud Engineer vs Pason

The clearest difference is price: Pason at Free against Mud Engineer's $2.99. Pason also leads on rating (4.6 vs 1.0) and update cadence (every 5 weeks vs every 34 months). Mud Engineer's advantage is review sentiment (100% vs 82%) and chart position (#71 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Pason is free to download; Mud Engineer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pason holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Pason has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Mud Engineer's written reviews are positive against 82% of Pason's, so the app with the better star average is not the one people write more warmly about.

Mud Engineer ships an update every 34 months, Pason every 5 weeks. The most recent releases landed on September 17, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Mud Engineer | Pason |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/mud-engineer/id992941305/reviews) | **[4.6 (20 ratings)](https://appshunter.io/ios/app/pason/id6502012087/reviews)** |
| Number of ratings | 1 | **20** |
| Positive reviews | **100.0% of reviews** | 81.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#71** | — |
| Size | 31 MB | 61 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [bader alshammari](https://appshunter.io/developer/858126240) | [Pason Systems Corp](https://appshunter.io/developer/867039732) |

## What reviewers say

### Mud Engineer

[App page](https://appshunter.io/ios/app/mud-engineer/id992941305)

**Currently charting:** #71 Top Paid · Business (US App Store)

This app provides essential drilling calculations for mud engineers. It helps determine final mud weight, volume adjustments, and the number of sacks needed for various drilling scenarios.

**Highlights:** Final Mud Weight calculation, Volume calculations, Sack calculations, lb/bbl calculation, Weight Up calculation

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

**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 Mud Engineer free?

Mud Engineer costs $2.99, with no in-app purchases.

### Is Pason free?

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

### Which has better reviews, Mud Engineer or Pason?

Pason is rated higher. Mud Engineer averages 1.0 out of 5 from 1 ratings, while Pason averages 4.6 from 20 ratings.

### Do Mud Engineer or Pason have ads?

Neither Mud Engineer nor Pason shows ads.

### Which is updated more often, Mud Engineer or Pason?

Mud Engineer ships an update every 34 months, and Pason every 5 weeks. Most recently, Mud Engineer was updated on September 17, 2026 and Pason on September 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.*