Oilfield ECD Pro vs Workstrings
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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!
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.
- Search product specifications
- View detailed spec sheets
- Download specification documents
- Share product information
- Browse tubular goods
- Access Worktech Joints specs
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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
Verdict
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
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.
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.
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.
| Parameter | Oilfield ECD Pro | Workstrings |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (1 ratings) | 5.0 (14 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 14 — better |
| Update frequency | Every 37 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | zhandos uakanov | SESI Holdings, Inc. |
Customer experience
Oilfield ECD Pro
Workstrings
In-app purchases
Oilfield ECD Pro
No in-app purchases
Workstrings
No in-app purchases




