PhysicsCalc vs Algorithm Fundamentals

PhysicsCalculator is your pocket physics assistant. 126 formulas across 6 sections: mechanics, thermodynamics, electromagnetism, optics, oscillations & waves, and modern physics. FREE: • 56+ formulas — 2 from each subsection • Smart calculation — select the unknown variable, enter the rest, get instant results • Step-by-step solutions — detailed breakdown of every calculation • 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 • 6 languages — English, Russian, German, Spanish, French, Chinese • Dark mode — comfortable work in any environment PREMIUM — ONE-TIME PURCHASE: • All 126 formulas — from high school to university level • Dependency graphs — visualize how one quantity depends on another • Error calculator — error propagation using partial derivatives • Favorites — save important calculations • PDF export — share your results PHYSICS SECTIONS: ▸ Mechanics — kinematics, dynamics, conservation laws, statics ▸ Thermodynamics — gas laws, heat transfer, molecular physics ▸ Electromagnetism — Coulomb's law, Ohm's law, electromagnetic induction ▸ Optics — refraction, lenses, diffraction ▸ Oscillations & Waves — pendulum, wave equation, sound ▸ Modern Physics — photoelectric effect, atomic physics, nuclear reactions The app is fully offline — no internet required, no data collected. Perfect for students, teachers, and physics enthusiasts.

Algorithm Fundamentals is an independent study app for building confidence with core computer science problem-solving skills. It is designed for students, self-taught developers, bootcamp learners, and interview candidates who want focused practice without distractions. Study across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts, including big-O notation, sorting algorithms, search algorithms, recursion basics, command-line basics, version-control concepts, debugging techniques, and software testing basics. Features: - 160 practice questions - FSRS spaced-repetition intervals - Weak-point heatmap to spot topics that need review - Daily challenge for consistent practice - Mock exams for timed review - Explanation included with every question - Offline practice, no login required Independent study app for Algorithm Fundamentals practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners. Privacy: Practice offline, no login required.