Comparison

Fluid Mechanics Pack vs OilField Engineer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 97 engineering calculators
  • 28 unit converters
  • Supports Imperial and Metric units
  • Fluid mechanics calculations
  • Civil and structural engineering tools
  • Key fluid dynamics numbers
Features
Read full description

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

About

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.

Highlights
  • Oil and Gas News Generator
  • 300+ Oilfield Calculators
  • Drilling and Production Reference Tables
  • Crude Oil and Gas Market Prices
  • Oil and Gas Unit Converter
Features
Currently charting
Read full description

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

Fluid Mechanics Pack4 screens
OilField Engineer3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 6 level
Fluid Mechanics Pack versus OilField Engineer: the parameters behind the verdict, then further details
ParameterFluid Mechanics PackOilField Engineer
Price$3.99$3.99
Rating5.0 (12 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better1
Update frequencyEvery 9 months — betterEvery 54 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#200 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.113.0 — better
Further details — not scored
Size5 MB32 MB
Age rating+44+
DeveloperV PUGAZHENTHIzhandos uakanov

Customer experience

Fluid Mechanics Pack

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

OilField Engineer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Fluid Mechanics Pack

No in-app purchases

None

OilField Engineer

No in-app purchases

Questions

Is Fluid Mechanics Pack free?
Fluid Mechanics Pack costs $3.99, with no in-app purchases.
Is OilField Engineer free?
OilField Engineer costs $3.99, with no in-app purchases.
Which has better reviews, Fluid Mechanics Pack or OilField Engineer?
Fluid Mechanics Pack is rated higher. Fluid Mechanics Pack averages 5.0 out of 5 from 12 ratings, while OilField Engineer averages 1.0 from 1 ratings.
Do Fluid Mechanics Pack or OilField Engineer have ads?
Neither Fluid Mechanics Pack nor OilField Engineer shows ads.
Which is updated more often, Fluid Mechanics Pack or OilField Engineer?
Fluid Mechanics Pack ships an update every 9 months, and OilField Engineer every 54 months. Most recently, Fluid Mechanics Pack was updated on November 10, 2026 and OilField Engineer on November 6, 2026.

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