# Mud Man Pro vs Drilling Calculator for Rigs

The clearest difference is price: Mud Man Pro at Free against Drilling Calculator for Rigs's $1.99. Mud Man Pro also leads on iOS requirement (16.0 vs 18.6). Drilling Calculator for Rigs's advantage is update cadence (every 6 weeks vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

Mud Man Pro is free to download; Drilling Calculator for Rigs costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mud Man Pro ships an update every 4 months, Drilling Calculator for Rigs every 6 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Mud Man Pro | Drilling Calculator for Rigs |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mud-man-pro/id6765783852/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 3 MB | 7 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Colten Meadows](https://appshunter.io/developer/1896073318) | [Aneesh Pradeep](https://appshunter.io/developer/1836157821) |

## What reviewers say

### Mud Man Pro

[App page](https://appshunter.io/ios/app/mud-man-pro/id6765783852)

This offline drilling fluid calculator provides essential tools for mud engineers on the rig. It offers over 20 specialized calculators for various fluid properties and operations, along with a comprehensive field notes library. Designed for speed and accuracy without internet dependency.

**Highlights:** 20+ drilling fluid calculators, OBM and WBM support, Offline functionality, Field notes library, Pilot test converter, Hitch calendar

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

**In-app purchases:** none


### Drilling Calculator for Rigs

[App page](https://appshunter.io/ios/app/drilling-calculator-for-rigs/id6785307917)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mud Man Pro free?

Mud Man Pro is free to download, with no in-app purchases.

### Is Drilling Calculator for Rigs free?

Drilling Calculator for Rigs costs $1.99, with no in-app purchases.

### Do Mud Man Pro or Drilling Calculator for Rigs have ads?

Neither Mud Man Pro nor Drilling Calculator for Rigs shows ads.

### Which is updated more often, Mud Man Pro or Drilling Calculator for Rigs?

Mud Man Pro ships an update every 4 months, and Drilling Calculator for Rigs every 6 weeks. Most recently, Mud Man Pro was updated on October 31, 2026 and Drilling Calculator for Rigs on October 31, 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.*