CalC vs Physics Formulas
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
CalC
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CalC is a great tool for students, especially those in high school, college, and university, who need to solve complex math and science problems. It features a natural display that allows you to enter equations as you would write them on paper, including fractions, square roots, and exponents. CalC also supports running Python code directly on the phone, making it a versatile tool for learning to code, testing algorithms, and solving advanced problems.
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/
Screenshots
Verdict
The clearest difference is update cadence: CalC at every 4 days against Physics Formulas's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. CalC sells 2 in-app purchases, starting at $1.99 per month and Physics Formulas sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
CalC ships an update every 4 days, Physics Formulas every 2 months. The most recent releases landed on October 12, 2026 and October 20, 2026 respectively.
| Parameter | CalC | Physics Formulas |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days โ better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 15.1 | 15.1 |
| Further details โ not scored | ||
| Size | 297 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Le Van Thanh | Mobin Akhter |
In-app purchases
CalC
- Premium monthly$1.991 Month
- Premium yearly$19.991 Year
Physics Formulas
- Weekly Access$3.997 Days
- Lifetime Access$49.99
Questions
Is CalC free?
Is Physics Formulas free?
Do CalC or Physics Formulas have ads?
Which is updated more often, CalC or Physics Formulas?
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