
Physics Formulas - PhysRef
Equations, Constants & Solver
Free · In-App Purchases · Designed for iPad
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/
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
The developer, Mobin Akhter, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Mobin Akhter
- Size
- 39.4 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Weekly Access USD 3.99
- Lifetime Access USD 9.99
- Copyright
- © 2026 Mobin Akhter. All rights reserved.