Automobile Engineering Book vs Mechanical Formula
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Automobile Engineering Book
This app provides a comprehensive yet accessible guide to automobile engineering. It covers basic vehicle structure, common malfunctions, and maintenance rules in a clear, engaging format with ample illustrations. Ideal for novice drivers and anyone seeking to understand their car better.
- Basic vehicle structure information
- Common malfunctions and solutions
- Operation and maintenance rules
- Simple language explanations of car systems
- Extensive illustrative material
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Getting started on this application, we set a goal to present a rather difficult theoretical course on the automobile engineering in the most accessible form. Basic knowledge of vehicles' structure will supply a novice driver with confidence in the fact that he will be able to control the situation of any breakdown, predict the amount of necessary work at the service station and just can competently exploit its vehicle. The free form of presentation, deprived of a dry technical syllable, and a large amount of illustrative material will facilitate the learning process and will make it rapid and efficient. The tutorial may be useful for students of driving schools, novice drivers and a wide range of readers who want to get basic knowledge about the car. WHAT CAN YOU FIND IN THIS APPLICATION? - Basic information about mechanism of modern cars - List of the most common malfunctions and ways to eliminate them - Operation and maintenance rules of the car - Description of the car systems in simple language - Plenty useful information that allows you to feel confident in any situation THE APPLICATION IS INTENDED FOR: - Students of driving schools and novice drivers - Parents who want to be confident in the high level of preparation of their children - All drivers who want to know more about their iron horse - Service managers (for better mutual understanding with customer) CONTENT: - Introduction - Car History - Body Types of Passenger Cars - Wheel Arrangement - Classification of Cars - Basic Elements of Passenger Car - Layouts of Major Vehicle Component Parts - Basic Technical Specifications of the Car - About Engines in General - Basic Single-Cylinder Internal Combustion Engine - Classifications of Engines - Basic Technical Specifications of Engine - Gas Distribution Mechanism (GDM) - Cylinder Head - Engine Block and Crank Gear - Engine Cooling System - Engine Lubrication System - Air Intake and Exhaust Systems - Feed System (Fuel System). Main Differences Between Gasoline and Diesel Engines - Feed System of Modern Engines - Purpose of Transmission - Manual Transmission - Automatic Transmission - Drive Gear and Differential. Purpose, Arrangement and Types - Drive Shafts and Hinged Joints. Purpose, Arrangement and Types - All-wheel drive cars - Purpose, Arrangement and Types of Car Suspensions - Wheels and Tires. Arrangement, Purpose and Marking - Wheel Alignment Angles - Brake Control. Purpose - Components - Flow Chart. Brake Circuits - Purpose and Operation of the Anti-Lock Braking System - Purpose and Arrangement of Steering - Purpose and Types of Power Steering - Purpose and General Arrangement of the Car Body - Vehicle Aerodynamics - Airbags - Seat Belts and Active Head Restraints - Means of Pedestrian Protection - Child Restraining Devices - Electrical Equipment and Electric Systems. General Information - Battery Pack (Battery). Purpose, Arrangement and Types - Battery Pack Maintenance. Safety Precautions when Servicing the Battery Pack - Ignition System (Gasoline Engines only) - Preheating System - Charging System. Generator, its Arrangement and Operation - Startup System. Starter, its Arrangement and Operation - Exterior Lighting System. Purpose and Operating Principle - Wipers and Washers. Purpose and Operating Principle - Pointers and Indicators - Heating and Air Conditioning System. Purpose, Arrangement and Operating Principle - Precautions when the Car Owner Carries out Maintenance - Operations that Shall Be Performed in order to Maintain the Normal Working Order of the Vehicle - Basic Car Maintenance Operations - Car Maintenance Schedule - Driver’s Memo - Abbreviations - Glossary The most qualitative textbook about automobile engineering 2025! Be careful behind the wheel! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Mechanical Formula
This app provides over 200 essential mechanical engineering formulas and calculations in a user-friendly tool. It's designed to simplify complex concepts and speed up problem-solving for students, professionals, and educators.
- 200+ mechanical engineering formulas
- Instant calculations
- Intuitive interface
- Real-world application explanations
- Exam preparation aid
- Lifetime Premium option
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The Mechanical Engineering Formula & Calculator app brings together 200+ essential mechanical engineering formulas and calculations in one powerful and easy-to-use tool. Designed specifically for mechanical students, professionals, and educators, this app simplifies complex concepts and makes problem-solving faster and more accurate. Developed by engineers for engineers, this app covers a wide range of mechanical engineering topics, helping users understand the principles behind each formula and how they are applied in real-world scenarios. Whether you are studying, revising, or working on-site, this app serves as your reliable engineering companion. With an intuitive interface, you can easily select any calculator, enter the required values, and get instant results with clear output. No complicated steps — just accurate calculations at your fingertips. Perfect for: - Mechanical engineering students - Practicing engineers - Technical instructors - Exam preparation & quick reference Boost your productivity and master mechanical calculations with confidence. In app purchase included : Lifetime Premium Privacy policy : https://chatlyst.in/privacy.html Terms and condition : https://chatlyst.in/tcondition.html
Screenshots
Verdict
Automobile Engineering Book and Mechanical Formula both sit at 4.6 stars, but that hides the real split: 100% of Automobile Engineering Book's written reviews are positive against 0% of Mechanical Formula's. Automobile Engineering Book also leads on update cadence (every 5 weeks vs every 4 months). Mechanical Formula's advantage is ratings volume (34 vs 9). On price, rating, ads and in-app purchases 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
Both are free to download. Automobile Engineering Book sells 4 in-app purchases, starting at $2.99 per 3 months and Mechanical Formula sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Mechanical Formula holds the better App Store score, 4.7 against 4.6. Both are backed by a comparable volume of ratings — 9 and 34 respectively. Written reviews complicate that: 100% of Automobile Engineering Book's written reviews are positive against 0% of Mechanical Formula's, so the app with the better star average is not the one people write more warmly about.
Automobile Engineering Book ships an update every 5 weeks, Mechanical Formula every 4 months. Both last shipped on November 3, 2026.
| Parameter | Automobile Engineering Book | Mechanical Formula |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (9 ratings) | 4.7 (34 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 9 | 34 — better |
| Update frequency | Every 5 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 136 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleksandr Pereshein | Kantaben Gorasiya |
Customer experience
Automobile Engineering Book
Mechanical Formula
In-app purchases
Automobile Engineering Book
- Full version3 Days trial2 variants$2.993 Months
- Full version for three months$2.99
- Full version for one year$4.99
- Full version forever$6.99
Mechanical Formula
- Lifetime$9.99
Questions
Is Automobile Engineering Book free?
Is Mechanical Formula free?
Which has better reviews, Automobile Engineering Book or Mechanical Formula?
Do Automobile Engineering Book or Mechanical Formula have ads?
Which is updated more often, Automobile Engineering Book or Mechanical Formula?
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