Comparison

Automobile Engineering Book vs AutoFixPro

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

Head to head
About

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.

Highlights
  • Basic vehicle structure information
  • Common malfunctions and solutions
  • Operation and maintenance rules
  • Simple language explanations of car systems
  • Extensive illustrative material
Features
Read full description

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/

About

AutoFixPro

Access professional-grade repair manuals for over 82 US car makes, covering model years from 1960 to 2025. Get step-by-step instructions, wiring diagrams, DTCs, and more for DIY enthusiasts and professionals. Download manuals for offline use.

Highlights
  • Repair manuals for 82+ car makes
  • Model years 1960-2025 coverage
  • Step-by-step repair procedures
  • Wiring diagrams and schematics
  • Diagnostic trouble codes (DTCs)
  • Offline manual access
  • VIN-based custom manual requests
Features
Read full description

AutoFix Pro gives you instant access to professional-grade service and repair manuals for over 82 makes of US cars and SUVs, covering model years 1960 through 2025. Whether you're a professional mechanic, a DIY enthusiast, or a fleet manager, AutoFix Pro puts the same factory-level repair information used by dealerships right in your hands. WHAT'S INCLUDED - Complete repair procedures with step-by-step instructions - Wiring diagrams and electrical schematics - Diagnostic trouble codes (DTCs) and troubleshooting guides - Engine, transmission, and drivetrain service information - Brake, suspension, and steering system procedures - Heating, ventilation, and air conditioning (HVAC) service - Body and interior repair instructions - Fluid specifications, torque values, and maintenance schedules - Technical service bulletins and recall information MASSIVE VEHICLE COVERAGE Access manuals for over 82 vehicle makes from 1982-2024. Need a manual for a newer vehicle? Plus and Pro subscribers can request custom manuals for 2013-2024 models using their VIN. Our system decodes your VIN, identifies your exact vehicle, and delivers a complete service manual tailored to your car. BUILT FOR THE SHOP AND THE GARAGE AutoFix Pro is designed to be used where the work happens. Download manuals for offline access so you can reference procedures in the garage, under the hood, or anywhere without an internet connection. Search within manuals to quickly find the exact procedure you need. THREE FLEXIBLE PLANS Basic — Access the full library of repair manuals for 82+ makes covering 1982-2014 vehicles. Download for offline use. Plus — Everything in Basic, plus one custom manual request for 2013-2024 vehicles via VIN lookup. Pro — Everything in Basic, plus three custom manual requests for 2013-2024 vehicles via VIN lookup. WHY AUTOFIXPRO - No subscription traps — choose monthly, 6-month, or yearly billing - Professional quality — the same data used by certified technicians - Always growing — new vehicles and content added regularly Stop paying $150/hour at the dealership for repairs you can do yourself. AutoFix Pro puts professional repair knowledge in your pocket for a fraction of the cost. Subscriptions are billed through your Apple ID and auto-renew unless cancelled at least 24 hours before the end of the current period. Manage your subscription in Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://autofixpro.app/privacy

Screenshots

Automobile Engineering Book4 screens
AutoFixPro3 screens

Verdict

The call

The clearest difference is review sentiment: Automobile Engineering Book at 100% against AutoFixPro's 0%. Automobile Engineering Book also leads on rating (4.6 vs 3.7) and update cadence (every 5 weeks vs every 3 months). 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

Both are free to download. Automobile Engineering Book sells 4 in-app purchases, starting at $2.99 per 3 months and AutoFixPro sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Automobile Engineering Book holds the better App Store score, 4.6 against 3.7. Both are backed by a comparable volume of ratings — 9 and 3 respectively. Written reviews point the same way: 100% of Automobile Engineering Book's written reviews are positive against 0% of AutoFixPro's.

UpkeepUpdate frequency

Automobile Engineering Book ships an update every 5 weeks, AutoFixPro every 3 months. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
Automobile Engineering Book versus AutoFixPro: the parameters behind the verdict, then further details
ParameterAutomobile Engineering BookAutoFixPro
PriceFreeFree
Rating4.6 (9 ratings) — better3.7 (3 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings9 — better3
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.0
Further details — not scored
Size136 MB3 MB
Age rating4+17+
DeveloperOleksandr PeresheinBoyan Mitreski

Customer experience

Automobile Engineering Book

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews14 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

AutoFixPro

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

4 purchases

Automobile Engineering Book

Subscriptions1
  • Full version3 Days trial2 variants$2.993 Months
One-time3
  • Full version for three months$2.99
  • Full version for one year$4.99
  • Full version forever$6.99
4 purchases

AutoFixPro

Subscriptions4
  • Starter$9.991 Month
  • Basic3 Days trial$9.997 Days
  • Plus$42.006 Months
Show 1 more
  • Pro Plan$60.001 Year

Questions

Is Automobile Engineering Book free?
Automobile Engineering Book is free to download, with in-app purchases available.
Is AutoFixPro free?
AutoFixPro is free to download, with in-app purchases available.
Which has better reviews, Automobile Engineering Book or AutoFixPro?
Automobile Engineering Book is rated higher. Automobile Engineering Book averages 4.6 out of 5 from 9 ratings, while AutoFixPro averages 3.7 from 3 ratings.
Do Automobile Engineering Book or AutoFixPro have ads?
Neither Automobile Engineering Book nor AutoFixPro shows ads.
Which is updated more often, Automobile Engineering Book or AutoFixPro?
Automobile Engineering Book ships an update every 5 weeks, and AutoFixPro every 3 months. Most recently, Automobile Engineering Book was updated on October 24, 2026 and AutoFixPro on October 24, 2026.

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