Comparison

MUDSheet vs ECD Calculator

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

Head to head
About

MUDSheet

This app provides essential calculations and data for mud engineering. It distills critical information from various engineering resources into a convenient tool for mud and drilling engineers, offering quick access to equations and chemical formulas.

Highlights
  • Essential mud engineering calculations
  • Quick access to drilling equations
  • Chemical formulas and atomic table
  • Unit conversion and setup exchange
  • Input data validation
  • Multiple table references
Features
Read full description

MUDSheet covers the most essential calculation and data in mud engineering. Designed for mud engineers and drilling engineers, MUDSheet is an app that contains 23 most commonly used calculations, ranging from pipe capacity, pump output to mud additives. We, engineers, are often overwhelmed by the information scattered around in various media forms. Now, the most essential information from engineering handbooks, SPE textbooks, IADC manuals, has been distilled into MUDSheet, a must-have application for every mud engineer and technician to get the job done accurately and efficiently. Features: • Engineering calculation in a second • Quick access to drilling equations and chemical formulas • Being convenient for unit setup exchange • Replaces paper charts and tables • Input data validation • Samples for demonstration • Optional function display and flexible order change • Multiple table references on mud capacity, volume, and properties Functions: • Pipe Capacity • Annular Capacity • Pipe & Annular Volume • Pump-Duplex • Pump-Triplex • Pump-Quadruple • Rectangular Tank Volume • Mesh • Nozzle Total Flow Area • Annular Velocity • CaCl2 • NaCl • Brine Density • Brine Viscosity • Specific Gravity • PV/YP in Water-Based Mud • Solids in Water-Based Mud • Mud Weight Adjustment • Temperature • Chemical Formula • Atomic Table • Unit Conversion

About

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.

Highlights
  • ECD calculation
  • Drilling engineering
  • Mud engineering
  • Point-of-operation calculation
  • Streamlined interface
Features
Read full description

ECD calculator help drilling and mud engineers calculate the ECD at any point with a few click

Screenshots

MUDSheet3 screens
ECD Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: MUDSheet at none against ECD Calculator's 2. MUDSheet also leads on iOS requirement (9.0 vs 15.1). ECD Calculator's advantage is update cadence (every 5 days vs every 2 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ECD Calculator sells 2 one-off in-app purchases. MUDSheet asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for MUDSheet against 5.0 for ECD Calculator. 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.

UpkeepUpdate frequency

MUDSheet ships an update every 2 months, ECD Calculator every 5 days. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
MUDSheet versus ECD Calculator: the parameters behind the verdict, then further details
ParameterMUDSheetECD Calculator
PriceFreeFree
Rating5.0 (1 ratings)5.0 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings15 — better
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.1
Further details — not scored
Size18 MB45 MB
Age rating17+17+
DeveloperPegasus Vertex, Inc.Drillsoft LLC

Customer experience

MUDSheet

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ECD Calculator

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MUDSheet

No in-app purchases

2 purchases

ECD Calculator

One-time2
  • 50 credits$3.99
  • 300 Credits$9.99

Questions

Is MUDSheet free?
MUDSheet is free to download, with no in-app purchases.
Is ECD Calculator free?
ECD Calculator is free to download, with in-app purchases available.
Which has better reviews, MUDSheet or ECD Calculator?
MUDSheet and ECD Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.
Do MUDSheet or ECD Calculator have ads?
Neither MUDSheet nor ECD Calculator shows ads.
Which is updated more often, MUDSheet or ECD Calculator?
MUDSheet ships an update every 2 months, and ECD Calculator every 5 days. Most recently, MUDSheet was updated on September 29, 2026 and ECD Calculator on October 6, 2026.

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