Automobile Engineering Book vs SkillTimer
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/
SkillTimer
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SkillTimer is a focus timer built for real skill growth. Most timers only count down. SkillTimer helps you understand what you actually practiced, how much time you invested, and how your skills are improving over time. Choose a skill, start a focused session, and when the timer ends, quickly write or dictate what you accomplished. Every session becomes a meaningful record of your progress. Whether you are learning to code, reading books, studying languages, practicing music, writing, designing, exercising, or building any other skill, SkillTimer helps you stay focused and consistent. KEY FEATURES FOCUS SESSIONS Start clean, distraction-free focus sessions for any skill. Choose your default duration and build a repeatable practice rhythm. SKILL TRACKING Create your own skills or start with built-in categories like Coding, Reading, English, Writing, Design, Fitness, Music, Mathematics, and more. REFLECTION NOTES After every session, answer one simple question: “What did I accomplish?” Add a quick text note or use voice input to capture your progress faster. DETAILED STATS See how much time you spent on each skill today, this week, and over time. Visual charts make your progress easy to understand. SESSION HISTORY Review your past sessions and notes in one place. See what you practiced, when you practiced, and what you achieved. ACHIEVEMENTS & STREAKS Stay motivated with achievements for consistency, total practice time, reflections, streaks, and deep focus milestones. CUSTOM DURATIONS Choose the focus duration that works for you — short sessions for quick practice or longer sessions for deep work. WHY SKILLTIMER WORKS SkillTimer combines focused work with simple reflection. This creates awareness, improves consistency, and helps you turn scattered effort into visible progress. Instead of asking you to fill out complicated forms, SkillTimer keeps tracking simple: 1. Choose a skill 2. Start a focus session 3. Reflect on what you did 4. Watch your progress grow PERFECT FOR • Learning to code • Reading more books • Studying languages • Practicing music • Writing and journaling • UI/UX design • Math and algorithms • Fitness and meditation • Any skill you want to improve PREMIUM SkillTimer is free to use with a daily focus session limit. Upgrade to SkillTimer Premium to unlock unlimited focus sessions, advanced statistics, full history, achievements, and more. Build skills one focused session at a time. Subscription Plans: - Payment will be charged to your App Store Account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. - Your account will be charged for renewal within 24 hours prior to the end of the current subscription period. Automatic renewals will cost the same price you were originally charged for the subscription. - Manage or cancel your subscription from your user settings in the App Store at any time after purchasing. - Any unused portion of a free trial will be forfeited if you purchase a subscription. Privacy Policy: https://sunteame.com/privacy-policy/ Terms of Use: https://sunteame.com/terms-of-service/ If you have questions or feature requests, use the support link in the app to contact us.
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Verdict
The clearest difference is iOS requirement: Automobile Engineering Book at 14.0 against SkillTimer's 17.0. On price, 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
Both are free to download. Automobile Engineering Book sells 4 in-app purchases, starting at $2.99 per 3 months and SkillTimer sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
| Parameter | Automobile Engineering Book | SkillTimer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 136 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleksandr Pereshein | SUN TEAME PTE. LTD. |
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
SkillTimer
- SkillTimer Premium Weekly$3.997 Days
- SkillTimer Premium Monthly$8.991 Month
- SkillTimer Premium Yearly$39.991 Year
Questions
Is Automobile Engineering Book free?
Is SkillTimer free?
Do Automobile Engineering Book or SkillTimer have ads?
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