Calc Pro - The Best Calculator

Calc Pro is now made for iPhone Duo — plus cryptocurrencies, investing worksheets, a full statistics suite, and a redesigned iPad experience. NEW — MADE FOR IPHONE DUO • Closed: Calc Pro's controls move into the side bar, so the calculator gets the full height of the display. • Open: Calc Pro spreads across both halves in an iPad-style layout, with every calculator, Options, Store and About in reach without scrolling. NEW — CRYPTOCURRENCIES & RATE HISTORY • 50 cryptocurrencies (BTC, ETH, SOL and more) join the World Currencies converter, with live rates and an offline fallback. • Tap the new chart button to see any pair's price history — 1D, 1W, 1M, 3M, 1Y or All — with high, low and percent change. NEW — 10 FINANCIAL WORKSHEETS (23 in total) • Investing: Stock Return, Average Cost (DCA), Options Profit/Loss, Black-Scholes Option Pricer (with Greeks), Position Size, and Dividend Income (with reinvestment). • Personal finance: Bond (price & yield to maturity), Credit Card Payoff, Savings Goal, and Inflation. • Gains show in green and losses in red, so you can read a result at a glance. NEW — 7 STATISTICS CALCULATORS • Cubic, Quartic and Logistic Regression. • Single Variable (Frequency), for value + frequency data entry. • Distributions: Normal, Inverse Normal, Binomial, Poisson, Student's t and Chi-Square. • Confidence Intervals, and Hypothesis Tests (1-sample Z, 1-sample t, 2-sample t). • Single-variable results now include quartiles, IQR, range, mode, geometric and harmonic means, coefficient of variation, skewness and kurtosis. NEW — MORE CONSTANTS & CONVERSIONS • Five new constants categories: Chemistry, Biology, Engineering, Computer Science and Earth Science. • 18 new conversion categories (37 in total), including Frequency, Voltage, Resistance, Data Transfer, Radiation Dose, Typography and Viscosity. • Around 90 new units across the existing categories — milligrams, kPa, microseconds, light-years, electronvolts and many more. IPAD & DESIGN • Redesigned World Currencies screen: high-resolution flags, full currency names, and a search bar. • New Liquid button skin. • iPad: a proper single-column portrait layout, a much wider side rail with larger icons, and a launch screen that fits both orientations. 7.0.6 IMPROVEMENTS • Financial worksheets now show your local currency, based on your device's region. • Unit conversions are more precise, with exact conversion factors throughout. • Crypto price charts can now show years of history with the All range. • Stability improvements and smaller fixes throughout the app.