Comparison

Oilfield ECD Pro vs Workstrings

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

Head to head
About

Oilfield ECD Pro

This tool simplifies Equivalent Circulating Density (ECD) calculations for oilfield professionals. It allows for easy input of pressure, depth, and mud weight, providing instant, accurate ECD values. Supports both imperial and metric units for global operations.

Highlights
  • Unit selection (OilField/Metric)
  • Annular pressure/friction loss input
  • True Vertical Depth (TVD) input
  • Mud weight/specific gravity input
  • Instant ECD calculation
  • API data compliance
Features
Read full description

Introducing OilField ECD Pro, the essential tool for oilfield specialists and mud engineers, meticulously crafted to simplify the calculation of Equivalent Circulating Density (ECD). Key Features: Unit Selection: Seamlessly toggle between OilField Units and Metric Units using the intuitive tab at the bottom of the interface, ensuring you work with the measurements you're most comfortable with. Data Input: Input your annular pressure/friction loss, your True Vertical Depth (TVD) in either feet or meters, and the current mud weight/specific gravity effortlessly. Instant ECD Calculation: Watch as the app swiftly processes your data and presents you with the precise ECD value you need for your operations. This application is built using the latest API (American Petroleum Institute) data, ensuring accuracy and compliance with industry standards. It has undergone rigorous testing and verification by professionals in leading oilfield services companies. Our application has been put to the test in various oilfields worldwide, including the United States, Canada, the United Arab Emirates, and Oman, to ensure its reliability and functionality across diverse operational environments. P.S.: OilField ECD Pro is your ticket to quick calculations, promoting safe and efficient oilfield operations. Work safely, work smart!

About

Workstrings

Access and share detailed product specifications for a wide range of tubular goods and specialized joints. Easily search, view, and download spec sheets for items like drill pipe, landing string, and drill collars.

Highlights
  • Search product specifications
  • View detailed spec sheets
  • Download specification documents
  • Share product information
  • Browse tubular goods
  • Access Worktech Joints specs
Features
Read full description

The Workstrings International Spec Sheet finder allows you to search for, view, download, and share specifications for a variety of Workstrings' products including Drill Pipe, Landing String, Heavy Weight Drill Pipe, Drill Collars, Tubing, Completion and Intervention Tubulars, and Worktech Joints

Screenshots

Oilfield ECD Pro2 screens
Workstrings4 screens

Verdict

The call

The clearest difference is price: Workstrings at Free against Oilfield ECD Pro's $0.99. Workstrings also leads on rating (5.0 vs 3.0) and update cadence (every 8 days vs every 37 months). On ads, in-app purchases and device support 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

Workstrings is free to download; Oilfield ECD Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Workstrings holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Workstrings has 14 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Oilfield ECD Pro ships an update every 37 months, Workstrings every 8 days. The most recent releases landed on September 21, 2026 and June 10, 2026 respectively.

Scorecard6 real differences · 4 level
Oilfield ECD Pro versus Workstrings: the parameters behind the verdict, then further details
ParameterOilfield ECD ProWorkstrings
Price$0.99Free — better
Rating3.0 (1 ratings)5.0 (14 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings114 — better
Update frequencyEvery 37 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.213.0 — better
Further details — not scored
Size1 MB135 MB
Age rating4+4+
Developerzhandos uakanovSESI Holdings, Inc.

Customer experience

Oilfield ECD Pro

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

Workstrings

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Oilfield ECD Pro

No in-app purchases

None

Workstrings

No in-app purchases

Questions

Is Oilfield ECD Pro free?
Oilfield ECD Pro costs $0.99, with no in-app purchases.
Is Workstrings free?
Workstrings is free to download, with no in-app purchases.
Which has better reviews, Oilfield ECD Pro or Workstrings?
Workstrings is rated higher. Oilfield ECD Pro averages 3.0 out of 5 from 1 ratings, while Workstrings averages 5.0 from 14 ratings.
Do Oilfield ECD Pro or Workstrings have ads?
Neither Oilfield ECD Pro nor Workstrings shows ads.
Which is updated more often, Oilfield ECD Pro or Workstrings?
Oilfield ECD Pro ships an update every 37 months, and Workstrings every 8 days. Most recently, Oilfield ECD Pro was updated on September 21, 2026 and Workstrings on June 10, 2026.

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