About this app

Calculator XP brings everyday calculations, advanced scientific tools, percentage formulas, and effortless bill splitting together in one beautifully designed calculator for iPhone and iPad. Calculate quickly. Work out percentages, discounts, tax, tips, and scientific equations—all with no ads, no subscriptions, and no account required. EVERYDAY CALCULATOR Handle addition, subtraction, multiplication, division, percentages, sign changes, and chained calculations with familiar controls and full-precision results. SCIENTIFIC CALCULATOR Solve advanced calculations using: • Trigonometric and inverse trigonometric functions • Degree and radian modes • Powers, roots, logarithms, and factorials • Parentheses, constants, reciprocals, and exponent entry PERCENTAGE CALCULATOR Choose from seven useful percentage formulas to calculate: • A percentage of a value • Percentage increase or decrease • Percentage change and difference • What percentage one value is of another • The original total from a part and percentage HISTORY AND MEMORY Recall previous calculations from your private history tape. Save important values in three independent memory banks, then recall, add, subtract, or clear them whenever needed. MADE FOR YOUR WORKFLOW • Copy, paste, and share equations or results • Use point or comma decimal notation • Choose automatic or fixed result precision • Enable optional trailing zeroes • Customize haptics, key sounds, contrast, and appearance • Use hardware-keyboard shortcuts • Enjoy responsive layouts in portrait or landscape PRIVATE BY DESIGN Calculator XP works offline. Your equations, history, memory values, receipt details, and diner names remain on your device. There are no accounts, advertisements, analytics, or cloud processing. ACCESSIBLE ON IPHONE AND IPAD Calculator XP supports VoiceOver, Dynamic Type, increased contrast, clear error announcements, large touch targets, light mode, and dark mode. From quick arithmetic and scientific calculations to percentage problems, tip calculations, and restaurant bill splitting, Calculator XP gives you one private calculator for everyday life.

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