Fluid Mechanics Pack vs OilField Engineer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fluid Mechanics Pack
This engineering toolkit provides 97 calculators and 28 converters for fluid mechanics, civil, and structural engineering. It supports both imperial and metric units, offering essential calculations for students, engineers, and researchers.
- 97 engineering calculators
- 28 unit converters
- Supports Imperial and Metric units
- Fluid mechanics calculations
- Civil and structural engineering tools
- Key fluid dynamics numbers
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Fluid Mechanics Pack – The Ultimate Engineering Toolkit This App is a powerful tool featuring 97 calculators and 28 converters designed for Fluid Mechanics, Civil Engineering, and Structural Engineering. Whether you’re a student, engineer, or researcher, this app helps you calculate essential parameters with ease. Supports Both Unit Systems • USCS (Imperial Units) • SI (Metric Units) Key Calculators & Equations Fluid Mechanics & Engineering Calculations • Pressure & Forces: Absolute Pressure, Brake Horsepower, Buoyant Force, External Hydrostatic Pressure • Flow & Velocity: Flow Rate, Bernoulli’s Theorem for Head Loss, Manning Flow Velocity, Hydraulic Radius • Viscosity & Diffusion: Kinematic Viscosity, Liquid Phase Diffusion Coefficient • Efficiency & Power: Pump Efficiency, Water Horsepower • Losses & Head Calculations: Minor Losses, Net Positive Suction Head (NPSH), Cavitation • Specific Properties: Specific Gravity, Specific Gas Constant, Specific Volume Flow Meters & Weirs • Acoustic Flow Meter, Venturi Meter, Orifice Flow Rate • Rectangular Weir (Francis Equation), V-Notch Weir, Parshall Flume Flow Rate • Hazen-Williams Fluid Flow Rate & Velocity Pipe & Structural Calculations • Pressure Ratings for Aluminum, Plastic, Steel, and Ductile Iron Pipes • Soil Load Per Linear Length of Pipe, Unrestrained Pipe Length Change • Pipe Vacuum Pressure Load, Water Buoyancy Factor, Restrained Anchored Pipe Stress Important Fluid Dynamics Numbers • Reynolds Number, Mach Number, Weber Number, Froude Number • Prandtl Number, Schmidt Number, Sherwood Number, Knudsen Number • Cauchy Number, Euler Number, Peclet Number, Lewis Number Darcy’s Law & Water Hammer • Head Loss, Flow Rate, Hydraulic Gradient, Void Ratio, Porosity • Maximum Surge Pressure for Fluids & Water, Pressure Increase 28 Powerful Unit Converters Convert between different units for: • Acceleration, Angle, Area, Density, Energy, Force • Flow Rate (Mass & Volume), Fluid, Frequency, Length, Mass • Moment of Force, Moment of Inertia, Pressure, Specific Heat Capacity • Specific Volume, Temperature, Thermal Conductivity, Thermal Expansion • Time, Torque, Velocity, Viscosity (Dynamic & Kinematic), Volume Your Complete Fluid Mechanics & Engineering Guide • Accurate and easy-to-use calculators • Supports both Imperial and Metric units • Essential for Civil, Structural, and Mechanical Engineers
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!
Screenshots
Verdict
The clearest difference is rating: Fluid Mechanics Pack at 5.0 against OilField Engineer's 1.0. Fluid Mechanics Pack also leads on update cadence (every 9 months vs every 54 months) and ratings volume (12 vs 1). OilField Engineer's advantage is chart position (#200 vs unranked) and iOS requirement (13.0 vs 16.1). On price, ads, in-app purchases and monetization model 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
Fluid Mechanics Pack costs $3.99 and OilField Engineer $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Fluid Mechanics Pack holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Fluid Mechanics Pack has 12 ratings behind it against 1, so its average is the more settled of the two.
Fluid Mechanics Pack ships an update every 9 months, OilField Engineer every 54 months. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.
| Parameter | Fluid Mechanics Pack | OilField Engineer |
|---|---|---|
| Price | $3.99 | $3.99 |
| Rating | 5.0 (12 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | 1 |
| Update frequency | Every 9 months — better | Every 54 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #200 — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 32 MB |
| Age rating | +4 | 4+ |
| Developer | V PUGAZHENTHI | zhandos uakanov |
Customer experience
Fluid Mechanics Pack
OilField Engineer
In-app purchases
Fluid Mechanics Pack
No in-app purchases
OilField Engineer
No in-app purchases







