Trigonometry and functions vs Chem Formula Sheet by CS team

"Trigonometry and functions" is an educational and a reference app that describes important concepts in Trigonometry. As the name suggests, the app has explanation with problems to solve on various topics, such as the six trigonometric functions, the law of sines , cosines, and tangents, inverse Trignometric functions, and the measures of degrees and radians. The audio explains the concepts that enables the user to pause, or continue to listen.

Need chemistry answers—fast? Chem Formula Sheet is your clean, reliable companion for class, lab, and exam prep. Find the right formula in seconds, run a quick calculation, and explore the periodic table without getting lost in jargon. It’s easy, beautiful, and works offline. Why you’ll love it • All the essentials in one place: From pH and molarity to gas laws and thermodynamics. • Tap to understand: Short, friendly explanations with example problems. • Instant calculators: Solve pH, dilution, ideal gas, Gibbs free energy, half-life, Nernst, and more. • Smart search & favorites: Type a few letters to find what you need, then save it for later. • Interactive periodic table: All 118 elements with key facts at a glance. • Study your way: Quick quizzes with helpful feedback and progress stats. • Looks great, day or night: Light/Dark themes and readable typography. • Offline first: Your formulas and tools are always available—no signal required. What’s inside • Formula Sheets: 100+ clear, organized entries across General, Physical, Analytical, Organic, Electrochemistry, Thermodynamics, and Kinetics. • Calculators: Molarity & dilution, pH/pOH, gas laws, Gibbs free energy ↔ K, Arrhenius, half-life, Nernst, and more. • Periodic Table: Clean layout, quick facts, and premium filters for deeper dives. • Quizzes: Quick 10, Practice by Category, and Mixed Challenge to sharpen skills. • Personalization: Favorites, recents, custom study lists, and theme options. Go Premium to unlock everything • All advanced calculators and full formula/quiz banks • Powerful periodic table filters & quick molar-mass tools • Extra themes, detailed analytics, and priority support • Ad-free, offline access to the entire library Whether you’re revising for a test, checking lab work, or brushing up on fundamentals, Chem Formula Sheet keeps chemistry simple, fast, and stress-free.