DrillOut Calcs vs Mud Man Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DrillOut Calcs
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.
- Post-frac plug drill-out calculations
- Flow balance verification
- Annular velocity calculation
- Sweep efficiency assessment
- Surface return timing
- Real-time data verification
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Drill-Out Calculator provides quick, accurate tools for oilfield professionals performing post-frac plug drill-outs. Built for simplicity and speed, it helps verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time.
Mud Man Pro
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.
- 20+ drilling fluid calculators
- OBM and WBM support
- Offline functionality
- Field notes library
- Pilot test converter
- Hitch calendar
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Mud Man Pro is a field-ready drilling fluid calculator built by a mud engineer for mud engineers. Whether you're running OBM or WBM, Mud Man Pro gives you fast, accurate calculations right on the rig — no internet required, no fluff, just the tools you actually need on the job. Features include 20+ calculators covering rheology, mud weight, pump output, ECD, hydrostatic pressure, kick tolerance, brine builder, retort analysis, dilution and mixing, pipe displacement, strokes, LCM pill, centrifuge G-force, and more. Also includes a pilot test converter, hitch calendar, and a comprehensive field notes library covering OBM, WBM, solids, testing procedures, and chemical behavior — all written from real field experience. Built for working mud engineers who need reliable answers fast.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | DrillOut Calcs | Mud Man Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Cody Martin | Colten Meadows |
Customer experience
DrillOut Calcs
Mud Man Pro
In-app purchases
DrillOut Calcs
No in-app purchases
Mud Man Pro
No in-app purchases
