Oilfield ECD Pro vs Quail Tools
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!
Quail Tools
Access essential specifications for Tubulars, BOPs, and API Casing offline. View detailed data like tool joint OD, make-up torque, and pressure ratings. Share spec sheets when an internet connection is available.
- Offline access to Tubular and BOP specs
- API Casing General Information table
- Detailed spec sheets for equipment
- Shareable spec sheets (online)
- Save spec sheets to device
- Tool joint OD, ID, torque, tensile
- BOP pressure rating, bonnet type, operating data
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The app allows users to select Tubulars or BOPS to view specs. Users will also have access to our newly added API Casing General Information table. The initial page will allow the user to select between three sections of the app: Tubulars, BOPs, or Casing. Upon selecting "Tubulars" or "BOPs, the user will be presented with a built in table that contains essential information. Therefore, it does not require an internet connection to function! This will allow for constant, unhindered access to tubular and BOP information such as: tool joint OD, tool joint ID, max make up torque, premium tensile, BOP height, BOP weight, BOP pressure rating, BOP bonnet type, BOP operating data, and BOP shear testing videos. Upon selecting the "API Casing - General Information" button, the user will have access to a built in table containing standard API casing information. You can now view essential specs in areas where there is little or no cell phone reception. When selecting "Tubulars" or "BOPs", simply tap the item to view the spec sheet. This retrieves the spec sheet from our website, which can be shared using the button on the top right. (Please note: this function does require an internet connection). From there, the spec sheet can also be saved to your phone, or any handled via another app. We hope you enjoy this app as much as we have. Please feel free to provide feedback via the contact us button in the app.
Screenshots
Verdict
The clearest difference is price: Quail Tools at Free against Oilfield ECD Pro's $0.99. Quail Tools also leads on rating (5.0 vs 3.0) and update cadence (every 5 weeks vs every 37 months). On 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
Quail Tools 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.
Quail Tools holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Quail Tools has 22 ratings behind it against 1, so its average is the more settled of the two.
Oilfield ECD Pro ships an update every 37 months, Quail Tools every 5 weeks. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.
| Parameter | Oilfield ECD Pro | Quail Tools |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (1 ratings) | 5.0 (22 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 22 — better |
| Update frequency | Every 37 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | zhandos uakanov | Austin Angelle |
Customer experience
Oilfield ECD Pro
Quail Tools
In-app purchases
Oilfield ECD Pro
No in-app purchases
Quail Tools
No in-app purchases







