Physics Formula Library by CS vs Physics Formulas
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Physics Formula Library by CS
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Physics doesnβt have to feel overwhelming. Physics Formula Library makes learning, practicing, and mastering physics easier and more enjoyable than ever. Whether youβre a student preparing for exams, a teacher looking for a classroom resource, or a curious learner, this app is your all-in-one physics companion. Why youβll love it: - 200+ Physics Formulas across mechanics, thermodynamics, electricity & magnetism, waves, optics, modern physics, astronomy, and fluids. Each formula comes with definitions, assumptions, and clear examples. - Interactive Calculators β just enter your known values, and the app solves for the missing one. Includes step-by-step explanations, unit conversions, and error checks. - Smart Quizzes β test your knowledge with customizable quizzes. Start with quick 5-minute drills or challenge yourself with advanced problems. Learn from detailed answer explanations. - Physical Constants Library β 100+ constants with historical notes and real-world usage. - Personalized Learning β save your favorite formulas, keep notes, and track your most-used references. - Beautiful Themes β choose from 10+ designs like Quantum, Galaxy, or Nature to match your mood and style. - Offline Ready β access everything, anytime, even without internet. Perfect for: - Students: Learn faster with examples, practice quizzes, and easy-to-use calculators. - Teachers: Use formulas and quizzes as teaching aids in the classroom. - Professionals & Enthusiasts: Quick reference for engineering, research, or personal curiosity. Upgrade to Premium to unlock advanced calculators, unlimited favorites, custom themes, and in-depth performance tracking. With Physics Formula Library, youβll always have the right formula, calculator, and knowledge at your fingertips.
Physics Formulas
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PhysRef is the complete physics formula reference designed for students, engineers, and science enthusiasts. Access hundreds of formulas, physical constants, and built-in calculators - all without internet connection. COMPREHENSIVE FORMULA DATABASE Browse formulas organized by topic: Mechanics, Thermodynamics, Waves, Electricity and Magnetism, Optics, and Modern Physics. Each formula includes variable definitions, units, and related concepts. BUILT-IN CALCULATORS Stop doing manual calculations. Enter your known values and instantly compute the unknown variable. Every calculator validates inputs and displays results with appropriate units. PHYSICAL CONSTANTS TABLE Quick access to fundamental constants including speed of light, gravitational constant, Planck's constant, electron mass, Boltzmann constant, and dozens more. All values use standard reference data. UNIT CONVERTER Convert between units across 14 categories: length, mass, time, velocity, acceleration, force, energy, power, pressure, temperature, electric charge, electric current, angle, and frequency. PERSONAL NOTES Add your own notes to any formula. Perfect for exam prep, recording problem-solving strategies, or marking formulas you find tricky. FORMULA DERIVATIONS Understand where formulas come from. See step-by-step derivations that connect fundamental principles to the equations you use. WORKS COMPLETELY OFFLINE All content is bundled in the app. Study on airplanes, in basements, or anywhere without signal. No account required. No internet needed. DESIGNED FOR STUDENTS Covers content from AP Physics 1, AP Physics 2, AP Physics C, IB Physics, and introductory university physics courses. Whether you are preparing for an exam or solving homework problems, PhysRef has you covered. PRIVACY FIRST Your data stays on your device. We do not collect personal information. No tracking. No analytics. No ads. FEATURES SUMMARY - Formula browser organized by physics topic - Search by formula name, variable, or concept - Calculators for solving problems - Physical constants with precise values - Unit converter with 14 categories - Personal notes on any formula - Formula derivations and explanations - Related formulas and connections - Bookmarks for quick access - Search history - Dark and light themes - 100% offline functionality Built for physics students who want a reliable, ad-free reference that works anywhere. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
The clearest difference is ads: Physics Formulas at none against Physics Formula Library by CS's shown. Physics Formulas also leads on update cadence (every 2 months vs every 6 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Physics Formula Library by CS sells 1 one-off in-app purchase and Physics Formulas sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Physics Formula Library by CS ships an update every 6 months, Physics Formulas every 2 months. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.
| Parameter | Physics Formula Library by CS | Physics Formulas |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 2 months β better |
| Ads | Yes | No β better |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 18.4 | 15.1 β better |
| Further details β not scored | ||
| Size | 10 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | ChatStick Company Limited | Mobin Akhter |
In-app purchases
Physics Formula Library by CS
- Unlock All Features$1.99
Physics Formulas
- Weekly Access$2.997 Days
- Lifetime Access$49.99
Questions
Is Physics Formula Library by CS free?
Is Physics Formulas free?
Do Physics Formula Library by CS or Physics Formulas have ads?
Which is updated more often, Physics Formula Library by CS or Physics Formulas?
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