Comparison

Physics++ vs Auto Mechanic Bob

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

Head to head
About

Physics++

This app provides a comprehensive collection of over 120 physics formulas across various topics like mechanics, relativity, and thermodynamics. It includes a search function, unit conversions, and physics constants, with many formulas featuring integrated calculators for easy problem-solving.

Highlights
  • 120+ physics formulas
  • Mechanics, relativity, thermodynamics coverage
  • Search function for formulas
  • Integrated formula calculators
  • Physics constants and unit conversions
Features
Read full description

Physics++ is the perfect companion for physics students and students of other science classes. Physics++ is a collection of physics formulas. The more than 120 formulas cover the topics mechanics, relativity, fluid mechanics, thermodynamics and electrodynamics. In addition there is a small number of primitives and a section with often used units. Physics constants are also included. With the search function formulas can now be found even faster. Most formulas have a calculator attached to them. So you can easily calculate values in exercises. In future update the number of formulas and constants will be increased.

About

Auto Mechanic Bob

Explore different types of engines with interactive animations and sounds. Test your knowledge with quizzes and practice diagnosing and fixing engine problems to earn certificates.

Highlights
  • Interactive engine animations
  • Engine repair challenges
  • Extensive engine quiz
  • Starting system information
  • Engine forums
  • Printable certificates
Features
Read full description

This is a fun educational app created to help you learn about the many different types of engines used in cars, trucks and small equipment. The first menu shows four types of engines. All of these engines work with colorful working animations and sounds. Four stroke engine Two stroke engine Wankle engine Steam engine   Many of these engines are still currently being used today and others were used in the beginning of the automobile era.  Professional mechanics and students will enjoy the challenge of the Engine quiz and the FIX Engine repair challenge. The next menu has informational pages covering  The electrical starting system.  An engine that needs repair in order for it to work. There is an engine quiz with over 110 different questions. Engine forums Starting system This is a fantastic way to learn about the starting system and related problems. Actual engine starting sounds are used to help you identify starting problems. Fix engine The engine is ready to go, but for many different reasons it won't start and run, you must correctly diagnose the problem part to make the engine run. If you can correctly diagnose and buy the engine parts without over spending you will earn a certificate. Engine quiz With over 110 different and challenging questions to test your mechanical knowledge you will be surprised on what you know or don't know. The more questions that you answer correctly you will move up the different certificate levels, up to Master mechanic. Save and print these certificates to prove your skill level. Engine forums A collection of popular engine forums on the web. It's a great way to learn about these different engines. You can also edit and change these web address to your preferred site. Learning these basic problems can actually help you start you own automobile engine or other small engine.

Screenshots

Physics++4 screens
Auto Mechanic Bob4 screens

Verdict

The call

The clearest difference is review sentiment: Physics++ at 68% against Auto Mechanic Bob's 0%. Physics++ also leads on rating (4.1 vs 1.0) and update cadence (every 5 weeks vs every 103 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

Physics++ costs $0.99 and Auto Mechanic Bob $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Physics++ holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Physics++ has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 68% of Physics++'s written reviews are positive against 0% of Auto Mechanic Bob's.

UpkeepUpdate frequency

Physics++ ships an update every 5 weeks, Auto Mechanic Bob every 103 months. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

Scorecard4 real differences · 6 level
Physics++ versus Auto Mechanic Bob: the parameters behind the verdict, then further details
ParameterPhysics++Auto Mechanic Bob
Price$0.99$0.99
Rating4.1 (10 ratings) — better1.0 (1 ratings)
Positive reviews68.2% of reviews — better0.0% of reviews
Number of ratings10 — better1
Update frequencyEvery 5 weeks — betterEvery 103 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.513.1 — better
Further details — not scored
Size75 MB20 MB
Age rating4+17+
DeveloperDominik HauserMichael OMassey

Customer experience

Physics++

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews44 reviews
Positive68.2%
Neutral11.4%
Negative20.5%

Auto Mechanic Bob

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

In-app purchases

None

Physics++

No in-app purchases

None

Auto Mechanic Bob

No in-app purchases

Questions

Is Physics++ free?
Physics++ costs $0.99, with no in-app purchases.
Is Auto Mechanic Bob free?
Auto Mechanic Bob costs $0.99, with no in-app purchases.
Which has better reviews, Physics++ or Auto Mechanic Bob?
Physics++ is rated higher. Physics++ averages 4.1 out of 5 from 10 ratings, while Auto Mechanic Bob averages 1.0 from 1 ratings.
Do Physics++ or Auto Mechanic Bob have ads?
Neither Physics++ nor Auto Mechanic Bob shows ads.
Which is updated more often, Physics++ or Auto Mechanic Bob?
Physics++ ships an update every 5 weeks, and Auto Mechanic Bob every 103 months. Most recently, Physics++ was updated on October 26, 2026 and Auto Mechanic Bob on October 20, 2026.

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