ReadableCalc vs Numeris 3D Graphing Calculator

ReadableCalc is a calculator app that displays large numbers—like 3 trillion 500 billion—in readable units. It’s designed to make extremely large numbers more intuitive at a glance. Main Features • Supports four basic operations (+, −, ×, ÷) • Displays results in English numeric units for easy readability • Handles decimals and negative numbers • DEL button for deleting one character at a time (Long press to clear the entire expression) • Long press on expressions or results to copy • Tap on the “readable” result to toggle display between: • Short scale / Long scale / Kanji numerals Additional features in landscape mode: • “00”, “000”, and “0000” buttons for quickly adding zeros • “x²” and “x³” buttons for quick exponentiation Note: • Numbers exceeding 200 digits may be rounded due to calculation and display limitations. Please be cautious if you need high precision. • Short scale and Long scale support numbers up to 10^198. • Kanji numeral display supports up to 10^72. Larger numbers are shown in Arabic numerals instead.

Numeris combines a full-featured scientific calculator with a powerful function plotter in one beautifully crafted app. THREE MODES - ONE CALCULATOR • BASIC - Quick everyday calculations with intuitive controls • SCIENTIFIC - Trigonometry, logarithms, exponentials, factorials, constants and more • GRAPHING - 2D function graphs and stunning 3D surface plots RPN MODE • Reverse Polish notation with a live stack display, in the style of classic RPN calculators • Enter, SWAP, DROP, DUP and R↓ plus every scientific function • Toggle with one tap in the header; the setting is remembered NEXT-GENERATION FUNCTION PLOTTER • Plot unlimited functions simultaneously in vibrant colors • Symbolic derivatives up to 5th order - automatically computed and simplified • Smart auto-fit detects zeros, extrema, and periodicity • 3D surface plots with rotation, zoom, and pan via touch gestures • Independent axis scaling for X, Y, and Z THOUGHTFUL DESIGN • Elegant OLED-optimized interface with glassmorphism effects • Color-coded bracket pairs for error-free formula entry • Live LaTeX preview of your formulas • Complete calculation history with search • Optimized for iPhone and iPad - landscape included 20 LANGUAGES Numeris speaks your language: English, German, French, Spanish, Italian, Portuguese, Japanese, Korean, Chinese, Russian, Turkish, Arabic, Hindi, Dutch, Polish, Swedish, Danish, Norwegian, Finnish, and Ukrainian. PERFECT FOR • Students in math, physics, and engineering • Teachers who want to demonstrate functions live • Professionals who need quick calculations and visualizations • RPN calculator veterans who will not give up RPN • Anyone looking for a beautiful and powerful calculator Core features are free. Unlock unlimited graphing with a one-time purchase - no subscription, no ads, no data collection.