CalculatorPro vs Calculator

Your system calculator says 0.1 + 0.2 = 0.30000000000000004. CalculatorPro doesn't. Arithmetic runs on exact rational numbers, not floating point. 1 ÷ 3 × 3 is 1. 19.99 × 3 is 59.97. Results that must be approximate — trig, logarithms — are marked with ≈, so you always know which numbers you can copy into a contract. — Accurate • Arithmetic, integer powers and decimals: zero error • 1 ÷ 3 shows its repeating digits with an overline, not a string of 333333 • sin(30°) = 0.5 and sin(180°) = 0, not 1.22e-16 • log(100) = 2 (many calculators give you the natural log, 4.605) • 200 + 10% = 220, not 200.1 — Calculates as you type • Live results — no need to press equals • Parentheses, backspace and percent at hand; edit the expression any time • Errors underline the exact fragment at fault and explain in plain language — Nothing gets lost • Every calculation is kept, with full-text search that stays instant across thousands of entries • Notes, pinning, and export to CSV / JSON / Markdown • History stores exact values — reload one in three years and no precision is lost — Two keypads, swipe to switch • Basic: a superset of the system calculator — parentheses, backspace, correct percentages • Scientific: trig, hyperbolics, logs, roots, factorials, modulo, DEG·RAD·GRAD — Also • 20 themes; light and dark are chosen independently, including Blueprint, Terminal, Receipt and Neon • Distinct haptics for digits, operators and equals • Full hardware keyboard mapping; split layout in landscape on iPad • Complete VoiceOver support and Dynamic Type — Privacy No data collected. No account, no network, no analytics. History never leaves your device. No in-app purchases, no subscription, no ads.

Designed for frequent calculations, making every input faster and smoother. Entered one wrong digit? There is no need to start over. FastCalc lets you edit an expression directly, insert, delete, or change numbers and operators at any position, and see the result update as you type. EDIT FREELY • Insert, delete, or change any part of an expression • Calculate and display results in real time as you type • Smart input checks help reduce invalid expressions and input errors FASTER INPUT • A larger, more prominent “+” key for repeated calculations • A dedicated “00” key for entering large numbers more efficiently • Start with “.” and the leading zero is added automatically, saving one tap CALCULATION HISTORY • View the current expression and calculation history on the same screen for easy comparison and reuse • Double-tap a history item to use it again • Copy a result, insert it, or replace the current expression • Premium lets you add color tags and notes to important calculations CLEAR DISPLAY • Choose three-digit or four-digit number grouping • Use a comma, space, or underscore as the separator to match different regional number formats • Long expressions remain clear and easy to review or edit CONVENIENT CONTROLS • On supported system versions, open the calculator from Control Center or the Lock Screen • Optionally clear the expression after pressing “=” so you can begin the next calculation immediately PERSONALIZE YOUR EXPERIENCE • Choose from multiple calculator themes • Some themes support both light and dark appearances • Select from several key sounds and spoken feedback options • Refined sound and haptic feedback make every tap feel more responsive PREMIUM Make one lifetime purchase to unlock history colors and notes, every theme and sound option, and other Premium features. FastCalc does more than display an answer. It is designed to make entering, editing, comparing, and reusing calculations more convenient. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://baolesoft.com/privacy/fast-calculator/