OilField Engineer vs Quail Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OilField Engineer
This app supports oilfield engineers and specialists with daily operations. It offers a news generator, over 300 calculators for drilling and production, reference tables, market prices, and a unit converter.
- Oil and Gas News Generator
- 300+ Oilfield Calculators
- Drilling and Production Reference Tables
- Crude Oil and Gas Market Prices
- Oil and Gas Unit Converter
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Welcome to the OilField Engineer App! We are here to provide enrichment and make a difference in your job. App was reviewed and approved by API. Application is made for oilfield engineers / specialists. It is an supporting tool which will help to improve engineers / specialists daily operations. Easy to use and simple. App Features: - Oil and Gas News generator - which is collect all news from Internet about Oil and Gas; - Oilfield Calculations ( more than 300 drilling, production and workover calculators); - Reference - All Tables and Data about Drill Collar, Drill Pipe, Casing and other; - Crude Oil and Gas market online price; - Oil and Gas converter; Work Safe!
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 Engineer's $3.99. Quail Tools also leads on rating (5.0 vs 1.0) and update cadence (every 5 weeks vs every 54 months). OilField Engineer's advantage is chart position (#181 vs unranked). On ads, in-app purchases, device support 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
Quail Tools is free to download; OilField Engineer costs $3.99 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 1.0. 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 Engineer ships an update every 54 months, Quail Tools every 5 weeks. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.
| Parameter | OilField Engineer | Quail Tools |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 1.0 (1 ratings) | 5.0 (22 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 22 — better |
| Update frequency | Every 54 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #181 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 32 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | zhandos uakanov | Austin Angelle |
Customer experience
OilField Engineer
Quail Tools
In-app purchases
OilField Engineer
No in-app purchases
Quail Tools
No in-app purchases
Questions
Is OilField Engineer free?
Is Quail Tools free?
Which has better reviews, OilField Engineer or Quail Tools?
Do OilField Engineer or Quail Tools have ads?
Which is updated more often, OilField Engineer or Quail Tools?
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