Comparison

R2R vs Physics Master Homework Tutor

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

Head to head
About

R2R

This educational app helps students revise chemistry topics by asking targeted questions. It identifies weak areas and allows for random or topic-specific practice. An optional upgrade provides over 500 additional questions.

Highlights
  • Targeted chemistry questions
  • Identifies weak revision topics
  • Random and topic-specific practice
  • Exam board tailoring
  • Optional extra question packs
Read full description

Don't know what to revise? Not enough time to revise? Let Rudi Rabbit help by asking you a whole bunch of Chemistry questions and then suggesting which topics you have done least well on. Once done, you can either choose questions at random or only on specific topics. This app is aimed at those students studying for A Levels in the United Kingdom but may also be of use to those studying the International Baccalaureate and other International examinations. The free version comes with 160 questions, but if you find it useful why not upgrade by adding over 500 extra questions by purchasing the Extra Questions Pack? If you select your examination board, Rudi will even tailor the questions to your specification.

About

Physics Master Homework Tutor

This app offers instant, step-by-step AI-powered solutions for physics problems, including a magic scanner to photograph and solve equations. It simplifies complex concepts, provides practice exercises, and includes a comprehensive formula library for effective test preparation.

Highlights
  • AI Physics Solver
  • Magic AI Scanner
  • Step-by-step solutions
  • Physics test preparation
  • Simplified theory explanations
  • Physics exercises and quizzes
  • Comprehensive formula library
Features
Read full description

REVOLUTIONIZE YOUR PHYSICS STUDY WITH "PHYSICS MASTER"! The First App with AI Scanner for Physics Solver and Physics Homework: • Instant solution for any physics problem • Personalized step-by-step physics answers • Effective preparation for physics tests and exams EXCLUSIVE NEW FEATURE: Magic AI Scanner • Take a photo of your problem and... BOOM! Instant step-by-step solutions. STOP struggling with impossible physics problems. Physics Master is your secret weapon for mastering the subject! It's like having Einstein in your pocket! Why Physics Master is a MUST-HAVE: • Simplified theory: Complex physics concepts explained like a friend would • Exercises and quizzes: Become a physics champion while having fun • Super powerful calculator: Solve complex physics problems in just a few taps • Complete formulas: All the physics formulas you need, always at hand • ZERO ads: 100% focus on studying Perfect for: • High school physics students panicking about tests (over 100k students every month) • College students who want to shine in exams • Anyone wanting to master physics without going crazy Covers ALL the physics topics you need: Fundamental Quantities • Derived Quantities • Scalar Quantities • Vector Quantities • Measurements and Errors • Systematic and Random Errors • Random Errors • Introduction to Kinematics • Average and Instantaneous Velocity • Average and Instantaneous Acceleration • Uniform Rectilinear Motion • Uniformly Accelerated Motion • Uniform Circular Motion • Harmonic Motion • Introduction to Principles of Dynamics • First Principle of Dynamics • Second Principle of Dynamics • Third Principle of Dynamics • Introduction to Forces • Equilibrium • Projectile Motion • Moment of Force • Friction Forces • Weight Force • Satellite Motion • Apparent Forces • Harmonic Motion of a Spring • Work of a Force • Power • Momentum • Kinetic Energy • Potential Energy • Kepler's Laws Physics topics don't end here: • Law of Universal Gravitation • Density • Pressure • Introduction: Thermodynamics • Temperature and Heat • Thermal Expansion • The Perfect Gas • Changes of State of Matter • Principles of Thermodynamics • Introduction - Wave • Types of Waves • Periodic Wave • Sound Wave • Doppler Effect • Introduction - Optics • Light • Reflection and Refraction • Lenses More physics content: • Electric Charge • Conservation of Electric Charge • Conductors and Insulators • Coulomb's Law • Dielectric Constant • Electric Field • Electric Current • Electrical Resistance • Ohm's Laws • Electric Circuit • Electromagnetic Waves • Mixed Circuit • Introduction to Quantum Physics • Planck's Constant • Bosons and Fermions • Quantum Entanglement • Quantum Number • Quantum Dot • Superfluidity NEW IN 2024: • Enhanced Artificial Intelligence • New physics exercises • Renewed interface • Support for all physics formulas • Real-time physics problem solving GUARANTEED Results: • 95% of students improve their physics grades • 9 out of 10 students save hours of study time each week • 100% enjoy learning (yes, you read that right!) WARNING: Once you try Physics Master AI, studying physics will never be the same. You might become the class genius! Don't waste another second struggling with incomprehensible formulas. Download Physics Master NOW and transform physics from enemy to best friend! P.S. If you don't download the app, Einstein might cry. Don't make Einstein cry! Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

R2R4 screens
Physics Master Homework Tutor4 screens

Verdict

The call

The clearest difference is rating: R2R at 5.0 against Physics Master Homework Tutor's 4.4. R2R also leads on review sentiment (100% vs 59%) and ads (none vs shown). Physics Master Homework Tutor's advantage is update cadence (every 4 weeks vs every 3 months) and ratings volume (136 vs 9). On price, in-app purchases, monetization model 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

Both are free to download. R2R sells 1 one-off in-app purchase and Physics Master Homework Tutor sells 10 in-app purchases, starting at $3.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

R2R holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Physics Master Homework Tutor has 136 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 100% of R2R's written reviews are positive against 59% of Physics Master Homework Tutor's.

UpkeepUpdate frequency

R2R ships an update every 3 months, Physics Master Homework Tutor every 4 weeks. Both last shipped on November 3, 2026.

Scorecard6 real differences · 4 level
R2R versus Physics Master Homework Tutor: the parameters behind the verdict, then further details
ParameterR2RPhysics Master Homework Tutor
PriceFreeFree
Rating5.0 (9 ratings) — better4.4 (136 ratings)
Positive reviews100.0% of reviews — better58.7% of reviews
Number of ratings9136 — better
Update frequencyEvery 3 monthsEvery 4 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.3 — better15.5
Further details — not scored
Size151 MB117 MB
Age rating4+4+
DeveloperJames StylesCarlo Terracciano

Customer experience

R2R

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Physics Master Homework Tutor

All ratings136 ratings
Positive83.8%
Neutral6.6%
Negative9.6%
Written reviews46 reviews
Positive58.7%
Neutral6.5%
Negative34.8%

Bugs and requests

R2R

Not enough reviews yet to summarise bugs or requests.

Physics Master Homework Tutor

Reported bugs

7 issues
  • App does not load on iPhone 13 Pro Max
  • Freezes on error message
  • Calculator is clunky
  • Difficult to navigate
  • Poorly worded explanations
Show 2 more
  • Many bugs prevent opening topics
  • Too many ads

Requested features

4 requests
  • Increase support for Chinese language
  • Access to image folder
  • More free functions
  • Option to purchase content by topic

In-app purchases

1 purchases

R2R

One-time1
  • Extra Questions Pack$0.99
10 purchases

Physics Master Homework Tutor

Subscriptions7
  • Physics · Monthly$3.491 Month
  • Physics · Monthly$5.991 Month
  • Physics · Monthly7 Days trial$5.991 Month
Show 4 more
  • Physics · Annual$8.491 Year
  • Physics · Annual$12.991 Year
  • Physics · Annual$24.991 Year
  • Physics · Annual7 Days trial$24.991 Year
One-time3
  • Unlock all stories$0.99
  • Lifetime Subscription Physics$29.99
  • Formulas & Solved Problems$99.99

Questions

Is R2R free?
R2R is free to download, with in-app purchases available.
Is Physics Master Homework Tutor free?
Physics Master Homework Tutor is free to download, with in-app purchases available.
Which has better reviews, R2R or Physics Master Homework Tutor?
R2R is rated higher. R2R averages 5.0 out of 5 from 9 ratings, while Physics Master Homework Tutor averages 4.4 from 136 ratings.
Do R2R or Physics Master Homework Tutor have ads?
Physics Master Homework Tutor shows ads; R2R does not.
Which is updated more often, R2R or Physics Master Homework Tutor?
R2R ships an update every 3 months, and Physics Master Homework Tutor every 4 weeks. Most recently, R2R was updated on November 3, 2026 and Physics Master Homework Tutor on November 3, 2026.

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