OilField Hydrostatic Pressure. vs Gammon API Gravity Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OilField Hydrostatic Pressure.
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Welcome to the OilField Hydrostatic Pressure Pro app, meticulously crafted for oilfield specialists, drillers, and mud engineers seeking precise hydrostatic pressure calculations. Easily navigate through the intuitive tabs at the bottom to access the specific information you require. Our application is built using the latest API (American Petroleum Institute) data, ensuring accuracy and reliability. Here's what you can expect: - Fluid weight (mud weight) input in pounds per gallon (ppg) alongside True Vertical Depth (TVD) in feet. - Mud weight input in ppg with TVD in meters. - Mud weight input in pounds per cubic foot (lb/ft³) with TVD in feet. - A convenient MD to TVD calculator. Simply input your fluid weight and TVD, and the app will swiftly provide hydrostatic pressure readings in both pounds per square inch (psi) and kilopascals (kPa). Rest assured, our calculations are verified by professionals in reputable oilfield services companies. Plus, rigorous testing has been conducted across various oilfields, including those in the US, Canada, UAE, and Oman. For any inquiries or corrections, feel free to reach out to us at info@oilfieldengineer.com. Prioritize safety with our quick calculations for safe operations. Work Safe!
Gammon API Gravity Calculator
Calculate corrected API gravity for jet, gasoline, and diesel fuels at 60°F. This digital tool also determines the total weight of the fuel, replicating the functionality of physical slide calculators.
- Corrected API gravity calculation
- Fuel weight calculation
- Supports jet, gasoline, and diesel fuels
- Digital slide calculator replacement
- Accurate at 60°F
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The GTP API Gravity Calculator from Gammon Technical Products, Inc. provides users the ability to determine corrected API at 60 Deg F for jet, gasoline, and diesel fuels. The calculator is a digital version of our GTP-3012-1A and GTP-2727EF slide calculators and it also is capable of calculating the total weight of the fuel.
Screenshots
Verdict
The clearest difference is price: OilField Hydrostatic Pressure. at $0.99 against Gammon API Gravity Calculator's $9.99. Gammon API Gravity Calculator's advantage is chart position (#196 vs unranked) and iOS requirement (8.0 vs 17.0). 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
OilField Hydrostatic Pressure. costs $0.99 and Gammon API Gravity Calculator $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | OilField Hydrostatic Pressure. | Gammon API Gravity Calculator |
|---|---|---|
| Price | $0.99 — better | $9.99 |
| Rating | — | 3.6 (10 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 10 — better |
| Update frequency | Every 38 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Best chart rank | — | #196 — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | zhandos uakanov | Gammon Technical Products |
In-app purchases
OilField Hydrostatic Pressure.
No in-app purchases
Gammon API Gravity Calculator
No in-app purchases






