Comparison

Driller's Method Worksheets 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

Driller's Method Worksheets

Features
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This app utilizes standardized Worksheets based on the Driller's method for well control operations following a kick. It supports both floating rigs with subsea stacks and surface stack operations. Designed for field applications and instructional use, it helps engineers and rig teams deepen their understanding of the Driller's method. Key Features & Integration * Fully compatible with field workflows and training scenarios. * Seamlessly import data files to populate kill sheets directly from our suite of well control apps: Drilling Hydraulics, Drilling Simulator 1, 2 & 3, Kick Game, Kick Tolerance, LOT Simulator, MPD Simulator, Well Control Methods, and Well Control Simulator 1 & 2.
 Our Mission Developed alongside industry experts using established spreadsheets, this app provides an accessible, cost-effective tool for drilling engineers, toolpushers, drillers, technicians, students, and instructors. It is designed as a practical field utility and learning companion, not a replacement for full-scale commercial engineering software. Feedback & Community We continuously improve our tools. Feel free to share feedback, report bugs, suggest translation refinements, or share this app with your colleagues. Thanks DISCLAIMER: These tools and materials are provided "as is" and "as available," without warranties of any kind, express or implied. You are solely responsible for verifying the accuracy and appropriateness of any calculations or data generated by this application prior to use. Any reliance on or use of these tools is strictly at your own risk. In no event shall the developer be liable for any direct, indirect, incidental, or consequential damages resulting from the use or inability to use this application.

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

Screenshots

ECD Calculator4 screens

Verdict

The call

The clearest difference is price: ECD Calculator at Free against Driller's Method Worksheets's $19.99. ECD Calculator also leads on update cadence (every 5 days vs every 4 months) and device support (3 vs 1). Driller's Method Worksheets's advantage is in-app purchases (none vs 2). On ads and iOS requirement 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

ECD Calculator is free to download; Driller's Method Worksheets costs $19.99 up front. ECD Calculator sells 2 one-off in-app purchases. Driller's Method Worksheets asks for nothing beyond the download.

UpkeepUpdate frequency

Driller's Method Worksheets ships an update every 4 months, ECD Calculator every 5 days. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
Driller's Method Worksheets versus ECD Calculator: the parameters behind the verdict, then further details
ParameterDriller's Method WorksheetsECD Calculator
Price$19.99Free — better
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.615.1 — better
Further details — not scored
Size10 MB45 MB
Age rating4+17+
DeveloperCarlos MouraDrillsoft LLC

In-app purchases

None

Driller's Method Worksheets

No in-app purchases

2 purchases

ECD Calculator

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

Questions

Is Driller's Method Worksheets free?
Driller's Method Worksheets costs $19.99, with no in-app purchases.
Is ECD Calculator free?
ECD Calculator is free to download, with in-app purchases available.
Do Driller's Method Worksheets or ECD Calculator have ads?
Neither Driller's Method Worksheets nor ECD Calculator shows ads.
Which is updated more often, Driller's Method Worksheets or ECD Calculator?
Driller's Method Worksheets ships an update every 4 months, and ECD Calculator every 5 days. Most recently, Driller's Method Worksheets was updated on October 12, 2026 and ECD Calculator on October 6, 2026.

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