Physics Formulas vs PhysicsCalc

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/

PhysicsCalculator is your pocket physics assistant. 185 formulas across 6 sections: mechanics, thermodynamics, electromagnetism, optics, oscillations & waves, and modern physics. FREE: • 62 formulas — the basics of every subsection • Smart calculation — select the unknown variable, enter the rest, get instant results • Step-by-step solutions — detailed breakdown of every calculation • Practice mode — random problems with answer checking and a full solution • Unit converter — 13 categories, 80+ units of measurement • Physical constants — speed of light, Planck's constant, and more • History — all your calculations at your fingertips, export to CSV • Angles in degrees or radians, SI prefixes (5k, 3μ), adjustable decimal places • 6 languages — English, Russian, German, Spanish, French, Chinese • Dark mode — comfortable work in any environment PREMIUM — ONE-TIME PURCHASE: • All 185 formulas — from high school to university level • Dependency graphs with automatic range • Error calculator — error propagation using partial derivatives • Favorites — save important calculations • PDF export — share your results • Try the graph, PDF export and error calculator once for free before you buy PHYSICS SECTIONS: ▸ Mechanics — kinematics, projectile motion, dynamics, inclined plane, conservation laws, rotation, statics, fluids, gravitation ▸ Thermodynamics — gas laws, heat balance, phase transitions, molecular physics, adiabatic process ▸ Electromagnetism — Coulomb's and Ohm's laws, circuits, capacitors, magnetic field, induction, Maxwell's equations ▸ Optics — refraction, lenses, diffraction, Bragg's law, photoelectric and Compton effects ▸ Oscillations & Waves — pendulum, LC circuit, wave equation, sound, Doppler effect ▸ Modern Physics — relativity, atomic and nuclear physics, radioactive decay Use the result of one formula as input to another. The app is fully offline — no internet required, no data collected. Perfect for students, teachers, and physics enthusiasts.