iLearnPhysics vs Photronium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iLearnPhysics
Master physics concepts with tutorials, a formula calculator, and quizzes. Explore mechanics and electromagnetism topics. Upgrade to unlock additional content and enhance your learning experience.
- Core concept tutorials
- Formulas calculator
- Quizzes
- Mechanics topics
- Electromagnetism topics
- Pro version upgrade
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This app helps you to understand Physics easily and fast with core concept tutorials, formulas calculator and quizzes. The app features a comprehensive list of formulas for the topics listed bellow, each with a smart formula calculator that allows you to solve any variable within the formula. Use the in-app purchase to upgrade to the Pro version for access the additional contents (11 tutorials). In the free version you can access only 4 tutorials. The list of topics covered by this app: - MECHANICS - 1. Motion in One Dimension Section 1. Distance and Displacement Section 2. Speed and Velocity Section 3. Position-time graph and Velocity-time graph Section 4. Acceleration Section 5. Equations of Motion 2. Forces and Newton's Laws Section 1. What is a Force Section 2. Newton's First Law of Motion Section 3. Newton's Second Law of Motion Section 4. Newton's Third Law Section 5. Weight and Normal Forces Section 6. Friction Force 3. Forces in Two Dimensions Section 1. Break down forces into components Section 2. Addition of Forces Section 3. Free body diagram 4. Free Fall and Projectile Motion Section 1. Free fall Section 2. Projectile Motion Section 3. Horizontal Projection Section 4. Angular Projection 5. Momentum and Collisions Section 1. Momentum Section 2. Impulse Section 3. Impulse-Momentum Theorem Section 4. Conservation of Momentum Section 5. Types of Collisions 6. Circular Motion and Rotation Section 1. Arc Length and Radian Measure Section 2. Uniform Circular Motion Section 3. Centripetal and Centrifugal Forces Section 4. Rotational Motion 7. Mechanics of Solids and Fluids Section 1. Fluids and Solids: Fundamentals Section 2. Mechanical Properties of Solids Section 3. Mechanical Properties of Fluids Section 4. Pascal's principle (Pascal's law) Section 5. Archimedes' principle - ELECTROMAGNETISM - 1. Electrostatics Section 1. Net Electrical Charge Section 2. Conductors and Insulators Section 3. Charged Objects Section 4. Coulomb's Law 2. Circuit Elements Section 1. Electric Field Section 2. Electric Potential Difference Section 3. Flow of Charge: The Current Section 4. Passive Circuit Elements Section 5. Active Circuit Elements 3. Electric Circuits Section 1. Ohm's Law Section 2. Kirchhoff's current law (KCL) Section 3. Kirchhoff's voltage law (KVL) Section 4. Series Circuits Section 5. Parallel Circuits Section 6. Series-Parallel Combination Circuits 4. Magnetism Section 1. Magnetic Field Section 2. The Earth’s Magnetic Field Section 3. Magnetic Force on Moving Charges Section 4. Magnetic Field from a Wire 5. Waves and Sound Section 1. The Nature of Waves Section 2. Wave Properties Section 3. The Behavior of Waves Section 4. The Nature of Sound Section 5. Sound Properties Section 6. The Doppler Effect 6. Optics Section 1. The Electromagnetic Spectrum Section 2. Luminous and Illuminated Bodies Section 3. Reflection of Light Waves Section 4. Refraction of Light Waves Section 5. Concave and Convex Mirrors Section 6. Convex and Concave Lenses - THERMODYNAMICS - 1. Energy, Work and Heat Section 1. System, Surroundings and Boundary Section 2. Closed, Open and Isolated Systems Section 3. Intensive and extensive properties Section 4. States and Processes Section 5. Energy Section 6. Work Section 7. Heat 2. Laws of Thermodynamics Section 1. Zeroth Law of Thermodynamics Section 2. First Law of Thermodynamics Section 3. The Second Law of Thermodynamics Section 4. The Third Law of Thermodynamics ** DO NOT USE AS CHEAT SHEET ON AN EXAM IF IT IS NOT ALLOWED.
Photronium
Access over 360 physics equations with clear explanations and powerful search tools. Test your knowledge with custom quizzes and learn offline anywhere, anytime. This educational reference is designed for learners of all levels.
- 360+ physics equations
- Offline access
- Intelligent Search
- Symbol Search
- Customizable quizzes
- Bookmarking
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With over 360 physics equations explained in a clear, easy-to-understand way and a flexible search system, Photronium can be an immensely helpful tool for learners of any level. PHYSICS AT YOUR FINGERTIPS Look up any physics equation, with topics including: • Motion in One Dimension • Projectile Motion • Laws of Motion • Uniform Circular Motion • Work and Energy • Linear Momentum and Collisions • Rotation of Rigid Bodies • Universal Gravitation • Fluid Mechanics • Oscillatory Motion • Wave Motion • Sound Waves • Thermodynamics • Electromagnetism • Light and Optics • Relativity • Quantum Physics All available offline, so you can learn anywhere, anytime. MEMORY QUIZ Test your knowledge by taking quizzes! Bookmark any section that interests you, and Photronium will automatically create quizzes based on those bookmarks. INTELLIGENT SEARCH & SYMBOL SEARCH Just type anything. Intelligent Search can work with the most ambiguous descriptions, like “atom”, “lens”, “radiation”, “Newton”, and “phase angle”. And when you need to find a physics formula without any description, Symbol Search provides a discovery experience you’ve never seen before. FREE & NO ADS Photronium comes with over 360 physics equations, Intelligent Search, Symbol Search, Widgets, Bookmarks, Suggested Websites, and Dark Mode all available for free and ad-free. With Extras, you can purchase more features and support the app’s development. Have questions or feedback? From the app, open Extras and send a report.
Screenshots
Verdict
The clearest difference is rating: Photronium at 5.0 against iLearnPhysics's 3.5. Photronium also leads on review sentiment (100% vs 59%) and update cadence (monthly vs every 51 months). iLearnPhysics's advantage is iOS requirement (9.0 vs 16.4). On price, ratings volume, 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. iLearnPhysics sells 1 one-off in-app purchase and Photronium sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Photronium holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 11 and 8 respectively. Written reviews point the same way: 59% of iLearnPhysics's written reviews are positive against 100% of Photronium's.
iLearnPhysics ships an update every 51 months, Photronium monthly. The most recent releases landed on August 18, 2026 and September 18, 2026 respectively.
| Parameter | iLearnPhysics | Photronium |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (11 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 58.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 11 — better | 8 |
| Update frequency | Every 51 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 71 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Cotarlea | Hao Nguyen |
Customer experience
iLearnPhysics
Photronium
In-app purchases
iLearnPhysics
- Upgrade to Pro$0.99
Photronium
- Multicolored Bookmarks$0.99
Questions
Is iLearnPhysics free?
Is Photronium free?
Which has better reviews, iLearnPhysics or Photronium?
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Which is updated more often, iLearnPhysics or Photronium?
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