PureCalc vs NibbleCalc

PureCalc is a simple, focused calculator designed for everyday calculations. Perform quick arithmetic, work with decimals and percentages, and keep track of recent calculations with a clean history view. The interface is lightweight, responsive, and easy to read, making it ideal for daily use whether you are checking totals, comparing numbers, or solving quick math problems. PureCalc keeps the experience distraction-free: open the app, calculate, and move on.

NibbleCalc is the all-in-one calculator for developers, designers, and power users — a clean, fast calculator plus a full toolbox, all offline. FOUR-FUNCTION & SCIENTIFIC • Beautiful standard calculator with calculation history • Full scientific panel in landscape (trig, logs, powers, roots, factorial) PROGRAMMER • HEX / DEC / OCT / BIN, live side by side • Bit widths from 8-bit up to 127-bit • Flip individual bits in an interactive bit grid • AND, OR, XOR, NOT and shifts COLOR TOOLS • Convert HEX, RGB, HSV, HSL and CMYK • Copy ready-to-use CSS, SwiftUI and UIKit code • Color Scan: pick real-world colors with your camera • WCAG contrast-ratio checker DEVELOPER TOOLS • JWT decoder — header, payload and claims, fully offline • MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes • UUID v4 generator • Base64 encode / decode (URL-safe too) DATE & TIME • Date calculator — add, subtract, days between • Unix timestamp converter — ISO 8601, RFC 2822, UTC and local MADE TO ENJOY • Three themes: Dark, Vibrant, Minimal • iPhone & iPad, portrait and landscape • 17 languages • Works entirely offline — your data never leaves your device NibbleCalc Pro (one-time purchase) • Remove ads • Unlock Dev Tools, Color Scan, 127-bit width and premium themes Download NibbleCalc and carry a whole developer toolbox in one calculator.