ECD Calculator vs Mud Man Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ECD Calculator
This utility app assists drilling and mud engineers in calculating Equivalent Circulating Density (ECD) at any point during operations. It offers a streamlined process with just a few clicks.
- ECD calculation
- Drilling engineering
- Mud engineering
- Point-of-operation calculation
- Streamlined interface
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ECD calculator help drilling and mud engineers calculate the ECD at any point with a few click
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 in-app purchases: Mud Man Pro at none against ECD Calculator's 2. ECD Calculator's advantage is update cadence (every 5 days vs every 4 months) and ratings volume (5 vs 1). On price, rating, ads and monetization model 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. ECD Calculator sells 2 one-off in-app purchases. Mud Man Pro asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for ECD Calculator against 5.0 for Mud Man Pro. That said, the two scores are not equally well evidenced: ECD Calculator has 5 ratings behind it against 1, so its average is the more settled of the two.
ECD Calculator ships an update every 5 days, Mud Man Pro every 4 months. The most recent releases landed on August 19, 2026 and August 26, 2026 respectively.
| Parameter | ECD Calculator | Mud Man Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 5 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 45 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | Drillsoft LLC | Colten Meadows |
Customer experience
ECD Calculator
Mud Man Pro
In-app purchases
ECD Calculator
- 50 credits$3.99
- 300 Credits$9.99
Mud Man Pro
No in-app purchases
Questions
Is ECD Calculator free?
Is Mud Man Pro free?
Which has better reviews, ECD Calculator or Mud Man Pro?
Do ECD Calculator or Mud Man Pro have ads?
Which is updated more often, ECD Calculator or Mud Man Pro?
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