BigInt Calculator vs JustCalc

A calculator for those who need more than standard precision. Integers of any size stay exact — no overflow, no lost digits. Fractions and square roots are shown to 10, 50, 100 or 1000 decimal places, as you choose. Multiplying numbers thousands of digits long takes milliseconds, and independent parts of an expression are computed in parallel on all CPU cores. Features - Addition, subtraction, multiplication, division - Powers and square roots (0.5, 1.5, 2.5…) - Parentheses and correct operator precedence - mod with fast modular powers: 3^(2^127-2) mod (2^127-1) takes an instant - Factorial (!) and the functions gcd, lcm, binom, isprime and nextprime - Hexadecimal and binary: integer results in hex, numbers like 0xff and 0b101 - Scientific notation (6.022e23) and superscript powers (2¹²⁷) - Three independent tabs M1, M2, M3 for parallel work - Keyboard bar with ( ) − √ ! on iPhone and iPad - Your tabs are saved between launches; Undo after clearing - History of recent calculations - A result screen with as many digits as fit, the digit count and the order of magnitude; ≈ marks results that are not exact - Every digit of a huge result in numbered rows, with a jump to any digit - Live progress and elapsed time for long calculations, with a Cancel button - Copy the result with one tap and the expression from the menu; share a result as text, a file or an image card - VoiceOver support; on Mac, menu commands and keyboard shortcuts - Built-in help with examples - Alternative symbol support: × ÷ : and a comma as decimal separator How it works Type a power with ^: 2^127-1. An exponent of 0.5 is a square root: 2^0.5. Parentheses work as in mathematics: (2+3)*4. mod has the lowest precedence: 2^255-19 mod 8. Function arguments are separated by a semicolon: gcd(12; 18). On iPhone, functions and 0x numbers are typed on a hardware keyboard or pasted. Who it's for - Students and math teachers - Developers working with cryptography and large primes - Number theory researchers - Anyone hitting the limits of ordinary calculators No ads, no trackers, no accounts. Works on smartphone, tablet, and computer.

One app. Infinite calculations. Zero clutter. JustCalc redefines what a mobile calculator can be. By merging advanced computational power with a premium glassmorphic design, it delivers an elegant, all-in-one solution for students, professionals, and everyday users. Whether you are balancing finances, solving complex physics formulas, or converting global time zones, JustCalc adapts to your workflow and looks incredible doing it. ------------------------------- CORE FEATURES: • The Ultimate Engine: Basic, Scientific, Graphing, Chemistry, and Physics calculators built-in. • Everyday Utilities: Seamless conversions for Units, Currencies, Time Zones, and Health/BMI tracking. • Glassmorphic UI: A visually stunning experience featuring frosted glass, glowing accents, and fluid animations. • Total Customization: Drag and drop your most-used tools to the top of your grid, and long-press to personalize individual accent colors. • True Dark Mode: Fully optimized for late-night crunching to reduce eye strain. ------------------------------- Work smarter, calculate faster, and clear the clutter. Download JustCalc today.