# Combine Fluids vs Mud Man Pro

The clearest difference is price: Mud Man Pro at Free against Combine Fluids's $0.99. Mud Man Pro also leads on rating (5.0 vs 3.7). Combine Fluids's advantage is update cadence (monthly vs every 4 months) and ratings volume (3 vs 1). On ads, in-app purchases and device support there is nothing between them.

Mud Man Pro is free to download; Combine Fluids costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mud Man Pro holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Combine Fluids ships an update monthly, Mud Man Pro every 4 months. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Combine Fluids | Mud Man Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/combine-fluids/id1458907903/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mud-man-pro/id6765783852/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Paid | **Free** |
| Size | 85 MB | 3 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [GoodStamp](https://appshunter.io/developer/717537129) | [Colten Meadows](https://appshunter.io/developer/1896073318) |

## What reviewers say

### Combine Fluids

[App page](https://appshunter.io/ios/app/combine-fluids/id1458907903)

This utility app helps oil and gas professionals quickly calculate fluid volume combinations. It allows users to input various fluid types and density requirements, saving different mix possibilities for specific wells.

**Highlights:** Combine up to 10 fluid types, Save fluid mix possibilities per well, Calculate volume combinations, Input mud density requirements, Supports volume limitations or not

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Combine Fluids free?

Combine Fluids costs $0.99, with no in-app purchases.

### Is Mud Man Pro free?

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

### Which has better reviews, Combine Fluids or Mud Man Pro?

Mud Man Pro is rated higher. Combine Fluids averages 3.7 out of 5 from 3 ratings, while Mud Man Pro averages 5.0 from 1 ratings.

### Do Combine Fluids or Mud Man Pro have ads?

Neither Combine Fluids nor Mud Man Pro shows ads.

### Which is updated more often, Combine Fluids or Mud Man Pro?

Combine Fluids ships an update monthly, and Mud Man Pro every 4 months. Most recently, Combine Fluids was updated on October 7, 2026 and Mud Man Pro on October 11, 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.*