# DrillOut Calcs vs Mud Man Pro

The clearest difference is update cadence: DrillOut Calcs at every 3 weeks against Mud Man Pro's every 4 months. Mud Man Pro's advantage is iOS requirement (16.0 vs 18.5). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for DrillOut Calcs against 5.0 for Mud Man Pro. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

DrillOut Calcs ships an update every 3 weeks, Mud Man Pro every 4 months. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | DrillOut Calcs | Mud Man Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/drillout-calcs/id6754534235/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/mud-man-pro/id6765783852/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 3 MB | 3 MB |
| Requires iOS | 18.5 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Cody Martin](https://appshunter.io/developer/1796736420) | [Colten Meadows](https://appshunter.io/developer/1896073318) |

## What reviewers say

### DrillOut Calcs

[App page](https://appshunter.io/ios/app/drillout-calcs/id6754534235)

This app offers essential calculations for oilfield professionals performing post-frac plug drill-outs. It provides quick and accurate tools to verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time, designed for simplicity and speed.

**Highlights:** Post-frac plug drill-out calculations, Flow balance verification, Annular velocity calculation, Sweep efficiency assessment, Surface return timing, Real-time data verification

**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 DrillOut Calcs free?

DrillOut Calcs is free to download, 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, DrillOut Calcs or Mud Man Pro?

DrillOut Calcs and Mud Man Pro are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do DrillOut Calcs or Mud Man Pro have ads?

Neither DrillOut Calcs nor Mud Man Pro shows ads.

### Which is updated more often, DrillOut Calcs or Mud Man Pro?

DrillOut Calcs ships an update every 3 weeks, and Mud Man Pro every 4 months. Most recently, DrillOut Calcs was updated on October 14, 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.*