Comparison

Mechanical Engineering Book vs Petroleum Engineering+

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

Head to head
About

Mechanical Engineering Book

This app provides a comprehensive guide to mechanical engineering, covering fundamental concepts, key terms, and essential formulas. It's designed for students and professionals to deepen their understanding of machine mechanisms and engineering principles.

Highlights
  • Learn mechanical engineering principles
  • Understand machine mechanisms
  • Access engineering formulas and equations
  • Explore engineering facts
  • Covers thermodynamics, materials science, and more
  • Designed for professionals and students
Features
Read full description

Learn Mechanical Engineering is a professional app to Learning Mechanical Engineering which to helps people to understand the working mechanisms of machines. Learn Mechanical Engineering is designed for mechanism as well research by professional engineers. Learn Mechanical Engineering is the study, design, development, construction, and testing of mechanical and thermal sensors and devices, including tools, machines, and machines. Mechanical engineering careers center on creating technology. Learn Mechanical Engineering Terms and lots of Engineering Equations, Engineering Formulas and Engineering Facts, this Engineering App will sure cement of basics to advanced engineering. Topics - Introduction - Thermodynamics - Engineering Materials - Mechanical Measurement - Machine Tools - Casting And Welding - Properties Of Gases - Fuels And Combustion - Power Plant Engineering - Internal Combustion Engines - Steam Engine, Steam And Gas Turbines - Properties Of Steam And Steam - Stress And Strain - Lifting Machines - Flywheel - Heat Transfer - Air Conditioning - Power Transmission - Coupling, Clutch, And Brake - Air Compressors - Fluid Mechanics And Hydraulic Machines - Mechanical Working Of Metals & Metal Sheet - Manufacturing Systems - Unconventional Machining Processes Why Learn Mechanical Engineering Mechanical engineers design and build solutions to a range of problems, improving efficiency across a wide range of industries. By studying mechanical engineering, you can look forward to good job prospects, high salaries, and varied work Mechanical engineering is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, and maintain mechanical systems. It is one of the oldest and broadest of the engineering branches. Engineering is the use of scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad range of more specialized fields of engineering.

About

Petroleum Engineering+

Master petroleum engineering concepts through engaging quizzes covering a wide range of topics from geology to production. Ideal for students and professionals seeking to enhance their knowledge and skills in the oil and gas industry.

Highlights
  • Comprehensive quiz coverage
  • Topics from geology to production
  • Boost knowledge and skills
  • Engaging learning experience
  • Suitable for students and professionals
Features
Read full description

Master Petroleum Engineering with Fun and Engaging Quizzes! Dive into the world of Petroleum Engineering with our comprehensive quiz app, designed to boost your knowledge, confidence, and skills. Whether you're a student, practitioner, or just exploring the field, this app is your ultimate companion for learning and growth. Topics Covered: Introduction to Petroleum Engineering: -History and evolution of the petroleum industry", -Overview of upstream, midstream, and downstream sectors -Role of petroleum engineers Petroleum Geology and Geophysics: - Origin and accumulation of hydrocarbons - Types of reservoir rocks and cap rocks - Structural and stratigraphic traps - Seismic methods and interpretation - Geological mapping and subsurface modeling Drilling Engineering: - Types of drilling rigs and their components - Drilling fluids and their properties - Casing design and cementing practices - Directional and horizontal drilling - Drill string design and bit selection Reservoir Engineering Fundamentals: - Reservoir fluid properties (PVT analysis) - Porosity and permeability measurement - Fluid saturation and capillary pressure - Material balance and reservoir drive mechanisms - Reservoir characterization and classification Well Logging and Formation Evaluation: - Types of logging tools (SP, gamma ray, resistivity) - Nuclear and acoustic logging techniques - Interpretation of log data for reservoir evaluation - Core sampling and laboratory analysis - Formation testing and pressure transient analysis Production Engineering: - Well completion techniques (open hole, cased hole) - Artificial lift systems (ESP, gas lift, rod pumps) - Well stimulation (acidizing, hydraulic fracturing) - Flow assurance and sand control - Production monitoring and optimization Enhanced Oil Recovery (EOR) Techniques: - Primary, secondary, and tertiary recovery concepts - Thermal methods (steam flooding, in-situ combustion) - Gas injection (CO₂, nitrogen, miscible flooding) - Chemical EOR (polymer, surfactant, alkaline) - Screening criteria and field implementation Natural Gas Engineering: - Gas properties and phase behavior - Gas reservoir performance and deliverability - Gas production and compression systems - Gas processing and dehydration - Liquefied natural gas (LNG) and gas monetization Petroleum Refining and Processing: - Overview of refining processes - Atmospheric and vacuum distillation - Conversion processes (cracking, reforming) - Product blending and specifications - Emission control and waste management Surface Facilities and Field Processing: - Field processing of oil, gas, and water - Separation equipment and design - Flowlines, pipelines, and gathering systems - Surface facility layout and operation - Maintenance and integrity management Reservoir Simulation and Modeling: Formation Damage and Wellbore Integrity: Health, Safety, and Environmental Management (HSE): Petroleum Economics and Project Evaluation: Features You'll Love: - Adaptive Quizzes: Questions tailored to your skill level, ensuring a personalized learning experience. - Detailed Explanations: Learn as you go with in-depth answers and references. - Timed Challenges: Test your speed and accuracy under time pressure for an extra thrill. - Progress Tracking: Keep tabs on your improvement with detailed analytics and reports. - User-Friendly Design: Intuitive interface for smooth navigation and focus. Who is it for? - Petroleum Engineering students preparing for exams. - Professionals brushing up on their knowledge. - Anyone interested in understanding the principles of occupational therapy. Download now and make learning occupational therapy enjoyable and effective! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://forwaelade.web.app/PetroleumEngineering/privacy-policy

Screenshots

Mechanical Engineering Book4 screens
Petroleum Engineering+4 screens

Verdict

The call

The clearest difference is price: Petroleum Engineering+ at Free against Mechanical Engineering Book's $1.99. Petroleum Engineering+ also leads on update cadence (monthly vs every 11 months) and rating (5.0 vs 4.7). Mechanical Engineering Book's advantage is in-app purchases (none vs 6) and ratings volume (12 vs 1). On ads 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

CostPrice · In-app purchases · Ads · Monetization

Petroleum Engineering+ is free to download; Mechanical Engineering Book costs $1.99 up front. Petroleum Engineering+ sells 6 in-app purchases, starting at $9.99 per month. Mechanical Engineering Book asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Petroleum Engineering+ holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Mechanical Engineering Book has 12 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Mechanical Engineering Book ships an update every 11 months, Petroleum Engineering+ monthly. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

Scorecard7 real differences · 3 level
Mechanical Engineering Book versus Petroleum Engineering+: the parameters behind the verdict, then further details
ParameterMechanical Engineering BookPetroleum Engineering+
Price$1.99Free — better
Rating4.7 (12 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings12 — better1
Update frequencyEvery 11 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better17.0
Further details — not scored
Size38 MB18 MB
Age rating4+4+
DeveloperHaroon KhalilForwa Elade Wunde

Customer experience

Mechanical Engineering Book

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Petroleum Engineering+

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mechanical Engineering Book

No in-app purchases

6 purchases

Petroleum Engineering+

Subscriptions3
  • 1 Month$9.991 Month
  • 6 Months$19.996 Months
  • 1 Year$29.991 Year
One-time3
  • 1500$0.99
  • 3500$1.99
  • 9000$3.99

Questions

Is Mechanical Engineering Book free?
Mechanical Engineering Book costs $1.99, with no in-app purchases.
Is Petroleum Engineering+ free?
Petroleum Engineering+ is free to download, with in-app purchases available.
Which has better reviews, Mechanical Engineering Book or Petroleum Engineering+?
Petroleum Engineering+ is rated higher. Mechanical Engineering Book averages 4.7 out of 5 from 12 ratings, while Petroleum Engineering+ averages 5.0 from 1 ratings.
Do Mechanical Engineering Book or Petroleum Engineering+ have ads?
Neither Mechanical Engineering Book nor Petroleum Engineering+ shows ads.
Which is updated more often, Mechanical Engineering Book or Petroleum Engineering+?
Mechanical Engineering Book ships an update every 11 months, and Petroleum Engineering+ monthly. Most recently, Mechanical Engineering Book was updated on September 27, 2026 and Petroleum Engineering+ on September 23, 2026.

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