CHSK vs LivePhysics

CHSK is a preparation app for the HSK exam, levels 1 to 6. -Mock exams Complete past papers with a 90-minute timer. Listening, reading and writing appear in the order used in the exam. -Targeted practice Practise listening, reading or writing on their own, sorted by level and question type. -Daily Words Vocabulary flashcards in both directions, Chinese to English and English to Chinese. -Word Match Match 20 Chinese words to their meanings against a timer. -Grammar list Grammar points for HSK 1 to 6, with an index and search.

LivePhysics puts a whole study lab in your pocket - free, ad-free, and built to work offline. Dozens of interactive tools, flashcards, and quizzes across science, math, and beyond. More than two dozen native tools run entirely on your device, so there's nothing to load and no connection required: INTERACTIVE TOOLS • Function grapher - plot Cartesian, polar, and parametric curves with roots, extrema, and intersections • Full periodic table - all 118 elements, filterable by category, phase, block, and electronegativity • Calculators & solvers - kinematics (SUVAT), quadratics, triangles, Ohm's law & circuits, ideal gas law, pH, molar mass, density, unit & base conversion, significant figures, and more • Vector addition, unit circle explorer, and projectile motion LEARN & PLAY • Flashcards & quizzes across geography, chemical elements, SI units, physics constants and formulas, Greek letters, and planets - with a countdown timer, read-aloud, streaks, XP and badges • Interactive US States and World map quizzes • A daily practice mode with spaced repetition to help facts stick REAL-WORLD LABS (on supported devices) • Compass Camera - a live camera view with a heading compass, coordinates, and a map • AR Measure & Launch - measure real distances and launch a physics-accurate projectile in AR • Motion Sensor Lab - visualize acceleration, rotation, tilt, and oscillations using your device's sensors A LIBRARY OF VISUAL GUIDES • Hundreds of infographics and cheat sheets across physics, chemistry, biology, math, and more • Save your favorites and pick up where you left off Sign in (optional) with Apple, Google, GitHub, or Microsoft to sync your bookmarks and progress between the app and livephysics.com. You can use everything without an account, and tool inputs never leave your device. Free forever. No ads inside the tools.