Comparison

HVAC School vs Mechanical Engineering Book

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

Head to head
About

HVAC School

This app serves as a comprehensive resource for HVAC technicians, offering a podcast, tech tip articles, and interactive calculators. It aims to enhance knowledge of HVAC theory, industry updates, and essential mathematics for both current and aspiring professionals.

Highlights
  • HVAC School podcast episodes
  • Tech tip articles by professionals
  • Interactive HVAC equation calculators
  • Industry knowledge and theory
  • Up-to-date industry information
Features
Read full description

The app that helps you remember some things you forgot along the way, as well as helps you remember some things you forgot to know in the first place. For all current and aspiring HVAC technicians: HVAC School is the premiere source for knowledge and success in the HVAC industry. With this app you can: * Listen to all episodes of the HVAC School podcast, a podcast committed to bringing you relevant and up to date knowledge of the HVAC industry and what it means to be an HVAC technician. * Read tech tip articles written by industry professionals on various topics to help build your knowledge base and understanding of HVAC theory * Interact with calculators that employ common HVAC equations to help build your understanding of important HVAC mathematics

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.

Screenshots

HVAC School4 screens
Mechanical Engineering Book4 screens

Verdict

The call

HVAC School and Mechanical Engineering Book both sit at 4.8 stars, but that hides the real split: 83% of HVAC School's written reviews are positive against 0% of Mechanical Engineering Book's. HVAC School also leads on price (Free vs $1.99) and update cadence (monthly vs every 11 months). Mechanical Engineering Book's advantage is iOS requirement (10.0 vs 13.4). On rating, 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

CostPrice · In-app purchases · Ads · Monetization

HVAC School is free to download; Mechanical Engineering Book costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for HVAC School against 4.7 for Mechanical Engineering Book. That said, the two scores are not equally well evidenced: HVAC School has 81 ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 83% of HVAC School's written reviews are positive against 0% of Mechanical Engineering Book's.

UpkeepUpdate frequency

HVAC School ships an update monthly, Mechanical Engineering Book every 11 months. The most recent releases landed on July 6, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 4 level
HVAC School versus Mechanical Engineering Book: the parameters behind the verdict, then further details
ParameterHVAC SchoolMechanical Engineering Book
PriceFree — better$1.99
Rating4.8 (81 ratings) — better4.7 (12 ratings)
Positive reviews82.8% of reviews — better0.0% of reviews
Number of ratings81 — better12
Update frequencyMonthly — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.410.0 — better
Further details — not scored
Size30 MB38 MB
Age rating4+4+
DeveloperKalos Services Inc.Haroon Khalil

Customer experience

HVAC School

All ratings81 ratings
Positive95.1%
Neutral3.7%
Negative1.2%
Written reviews29 reviews
Positive82.8%
Neutral13.8%
Negative3.4%

Mechanical Engineering Book

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

In-app purchases

None

HVAC School

No in-app purchases

None

Mechanical Engineering Book

No in-app purchases

Questions

Is HVAC School free?
HVAC School is free to download, with no in-app purchases.
Is Mechanical Engineering Book free?
Mechanical Engineering Book costs $1.99, with no in-app purchases.
Which has better reviews, HVAC School or Mechanical Engineering Book?
HVAC School is rated higher. HVAC School averages 4.8 out of 5 from 81 ratings, while Mechanical Engineering Book averages 4.7 from 12 ratings.
Do HVAC School or Mechanical Engineering Book have ads?
Neither HVAC School nor Mechanical Engineering Book shows ads.
Which is updated more often, HVAC School or Mechanical Engineering Book?
HVAC School ships an update monthly, and Mechanical Engineering Book every 11 months. Most recently, HVAC School was updated on July 6, 2026 and Mechanical Engineering Book on September 27, 2026.

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