Offline smart calculator

Smart Calculator is your all-in-one, privacy-focused mathematical assistant designed for everyday calculations, financial planning, scientific problem-solving, and unit conversions. Engineered with an offline-first architecture and a sleek, modern interface, Smart Calculator delivers fast, precise, and reliable results without tracking your personal data or requiring unnecessary background connections. KEY FEATURES: 🔢 Basic & Scientific Calculator • Perform standard arithmetic, percentages, and memory operations (M+, M-, MR, MC). • Access advanced trigonometric functions, logarithms, exponents, factorials, and roots. • Easily switch between Degrees (DEG) and Radians (RAD) angle modes. • Instant calculation history with fast copy and favorite options. 📐 Unit & Currency Converter • Convert length, weight, area, volume, temperature, speed, and time. • Convert global currencies with live exchange rates and automatic offline rate caching. 📊 Financial & Everyday Calculators • Loan & Mortgage EMI Calculator: Estimate monthly payments and total interest with visual chart breakdowns. • Discount Calculator: Find original prices, discount percentages, and total savings. • GST / VAT Calculator: Instantly calculate gross, net, and tax amounts. • Tip & Split Calculator: Split restaurant bills effortlessly between friends with customized tip percentages. 💚 Health & Life Utilities • BMI Calculator: Compute Body Mass Index with healthy range insights. • Age Calculator: Calculate exact age in years, months, days, total hours, and count down to your next birthday. 📈 Advanced Math Tools • Graph Calculator: Plot mathematical functions y = f(x) on an interactive chart. • Voice Calculator: Evaluate expressions by speaking directly to your device. • OCR Expression Scanner: Scan printed math expressions using on-device text recognition. 🔒 PRIVACY & SECURITY FIRST: • 100% Offline-First Architecture: All calculations, history logs, and settings remain on your local device. • Zero Personal Data Collection: We do not track, collect, or transmit your private user data. • Transparent Permissions: Camera and microphone access are requested strictly on-demand for OCR and Voice features. 🎨 CUSTOMIZABLE INTERFACE: • Light Mode, Dark Mode, and AMOLED Pure Black Dark Theme. • Adjustable decimal precision and thousands separators. • Haptic feedback and sound preferences. Download Smart Calculator today for a fast, elegant, and secure calculation experience!