Comparison

Directional Survey Methods vs Mud Man Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Directional Survey Methods

Features
Read full description

This application uses the formulas to calculate the survey parameters (diff of TVD, N/S, E/W, DLS) between two stations of the methods: 1. Tangential 2. Balanced Tangential 3. Minimum Curvature 4. Radius of Curvature 5. Angle Averaging Also available the formulas of the methods. This app was developed based in existing spreadsheets. There is no comparison with any other software. You can contribute with suggestions for improvements, reporting bugs and spreading it to your friends. Our portfolio for Directional Drilling available on the App Store: - "Directional Drilling" a complete app (building and plotting) with well planning, survey, multi-lateral, etc. - There are also stand-alone applications for Well Planning, Well Survey and Multi-Lateral Wells. - "3D Interpolation" to calculate a survey data between two stations. DISCLAIMER: These tools & materials are provided 'as is' without warranties of any kind, express or implied. Please verify the tools provided by this application by yourself before you use them. Ensure you understand the impact of using these tools. Any use you choose to make of these tools & materials is undertaken by you entirely at your own risk. Thanks

About

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.

Highlights
  • 20+ drilling fluid calculators
  • OBM and WBM support
  • Offline functionality
  • Field notes library
  • Pilot test converter
  • Hitch calendar
Features
Read full description

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

Directional Survey Methods4 screens
Mud Man Pro4 screens

Verdict

The call

The clearest difference is update cadence: Mud Man Pro at every 4 months against Directional Survey Methods's every 50 months. Directional Survey Methods's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Directional Survey Methods ships an update every 50 months, Mud Man Pro every 4 months. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 6 level
Directional Survey Methods versus Mud Man Pro: the parameters behind the verdict, then further details
ParameterDirectional Survey MethodsMud Man Pro
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 50 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size7 MB3 MB
Age rating4+4+
DeveloperCarlos MouraColten Meadows

In-app purchases

None

Directional Survey Methods

No in-app purchases

None

Mud Man Pro

No in-app purchases

Questions

Is Directional Survey Methods free?
Directional Survey Methods 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.
Do Directional Survey Methods or Mud Man Pro have ads?
Neither Directional Survey Methods nor Mud Man Pro shows ads.
Which is updated more often, Directional Survey Methods or Mud Man Pro?
Directional Survey Methods ships an update every 50 months, and Mud Man Pro every 4 months. Most recently, Directional Survey Methods was updated on October 1, 2026 and Mud Man Pro on October 11, 2026.

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