Comparison

Oilfield ECD Pro vs Quail Tools

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

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.

Highlights
  • 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
Features
Read full description

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

Oilfield ECD Pro2 screens
Quail Tools4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Oilfield ECD Pro versus Quail Tools: the parameters behind the verdict, then further details
ParameterOilfield ECD ProQuail Tools
Price$0.99Free — better
Rating3.0 (1 ratings)5.0 (22 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings122 — better
Update frequencyEvery 37 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.212.0 — better
Further details — not scored
Size1 MB50 MB
Age rating4+4+
Developerzhandos uakanovAustin Angelle

Customer experience

Oilfield ECD Pro

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

Quail Tools

All ratings22 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Oilfield ECD Pro

No in-app purchases

None

Quail Tools

No in-app purchases

Questions

Is Oilfield ECD Pro free?
Oilfield ECD Pro costs $0.99, with no in-app purchases.
Is Quail Tools free?
Quail Tools is free to download, with no in-app purchases.
Which has better reviews, Oilfield ECD Pro or Quail Tools?
Quail Tools is rated higher. Oilfield ECD Pro averages 3.0 out of 5 from 1 ratings, while Quail Tools averages 5.0 from 22 ratings.
Do Oilfield ECD Pro or Quail Tools have ads?
Neither Oilfield ECD Pro nor Quail Tools shows ads.
Which is updated more often, Oilfield ECD Pro or Quail Tools?
Oilfield ECD Pro ships an update every 37 months, and Quail Tools every 5 weeks. Most recently, Oilfield ECD Pro was updated on October 26, 2026 and Quail Tools on October 29, 2026.

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