Big Number Calculator app icon

Apps Like Big Number Calculator for iPhone and iPad

Calculate large numbers with precision

Perform arithmetic operations on large decimal numbers with up to 66000 digits. Add, subtract, multiply, and divide using a single format. Choose between Swift or Objective-C calculation engines.

by Kunio Takeuchi★ 0.00 ratingsEducationFreeData updated 2026-09-06

Big Number Calculator screenshots

Ranked alternatives

Showing 21–40 of 1,000 ranked alternatives.

  1. Calculator ∞ app icon

    Calculator ∞

    An Truong

    Calculate, graph, and solve equations

    Solve equations, perform algebraic calculations, and graph functions. Support for multiple models including TI-83, TI-84, TI-89, Casio FX, and Sharp EL. Includes a scientific , fraction simplifier, and unit converter.

    ★ 4.76,346 ratingsEducation$5.99Data updated 2026-09-17
  2. Calculator Pro Lite app icon

    Calculator Pro Lite

    Cider Software LLC

    Customize themes and buttons

    Customize appearance with themes, button shapes, and colors. Choose from six layouts and control all visual elements. View input and result simultaneously on dual-line display. Adjust settings for precise calculations.

    ★ 4.63,075 ratingsUtilitiesFreeData updated 2026-09-08
  1. Know Abacus app icon

    Know Abacus

    Kittipong Mungnirun

    Learn , count, add, subtract

    Learn basic counting and arithmetic using an . Perform single-digit addition and subtraction. Practice number recognition and counting skills. Track progress with interactive exercises and visual aids.

    ★ 4.876 ratingsEducationFreeData updated 2026-09-08
  2. Calculator! app icon

    Calculator!

    7th Gear

    Calculate, customize, and solve equations

    Calculator lets users perform basic and scientific calculations with over 30 functions. Switch between portrait and landscape modes. Customize leather color and background texture on iPad. Take notes or draw directly on the interface.

    ★ 4.84,271 ratingsUtilities$0.99Data updated 2026-09-08
  3. Basic Calculator: Classic Calc app icon

    Basic Calculator: Classic Calc

    MobArts Ltd

    Calculate, split, and customize

    Perform general calculations including addition, subtraction, multiplication, division, and square roots. Use memory functions for storage and retrieval. Apply thousands separators and handle numbers up to 60 digits.

    ★ 4.83,214 ratingsUtilitiesFreeData updated 2026-09-08
  4. Acc Calculator app icon

    Acc Calculator

    Digital Mind Co., Ltd.

    Basic calculations with paper tape

    The app provides basic arithmetic calculations with a two-line display and a paper tape. It shows the calculation formula and its result simultaneously, featuring large buttons for ease of use.

    ★ 4.7133 ratingsUtilities$0.99Data updated 2026-09-19
  5. Simple Calculator. + app icon

    Simple Calculator. +

    tasser gyati

    Calculate taxes and percentages

    Perform arithmetic calculations with 12 digits. Calculate tax, percentages, and cost, selling price, and gross margin. Use memory functions, square root, and sign change. Track grand total.

    ★ 4.7147 ratingsUtilities$1.99Data updated 2026-09-14
  6. KING OF MATH: Math Learner app icon

    KING OF MATH: Math Learner

    wonderkind GmbH

    Practice operations with pen and paper style

    Practice addition, subtraction, multiplication, and division with interactive exercises. Solve problems using natural handwriting input. Adjust difficulty based on skill level. Earn rewards and bonuses to stay motivated.

    ★ 4.31,241 ratingsEducationFreeData updated 2026-09-06
  7. Calzy app icon

    Calzy

    Raja Vijayaraman

    Calculate, edit, and organize equations

    Perform calculations with a clean interface. Store and reuse numbers using the Memory Area. Bookmark equations for quick access. Drag and drop values between calculations. Switch between scientific and basic modes. Export results as text or image.

    ★ 4.71,906 ratingsProductivity$1.99Data updated 2026-09-20
  8. Calculator HD: Big Buttons app icon

    Calculator HD: Big Buttons

    Studio Zebra

    Calculate with large, easy-to-read numbers

    A for with a large, easy-to-read display. Perform basic arithmetic operations. Use user-friendly controls for quick calculations.

    ★ 4.51,938 ratingsUtilitiesFreeData updated 2026-09-10
  9. Math 24 - Mental Math app icon

    Math 24 - Mental Math

    CHENGDU MIAOZHI TECHNOLOGY CO., LTD.

    Play games to reach 24 points

    Practice arithmetic with addition, subtraction, multiplication, and division to reach 24 points. Choose from three difficulty levels. Generate custom 24-point problems for printing or exporting. Compete in timed challenges of 1, 2, 3, or 5 minutes.

    ★ 4.6525 ratingsEducationFreeData updated 2026-09-20
  10. Calculator - Unit Converter app icon

    Calculator - Unit Converter

    TOWER OF HANOI SOFTWARE COMPANY LIMITED

    Calculate and convert units

    Perform basic and advanced calculations including addition, subtraction, multiplication, division, and exponents. Convert units between degrees, radians, and grads. Switch between standard and scientific modes.

    ★ 4.6393 ratingsUtilitiesFreeData updated 2026-09-06
  11. Abacus Exercise app icon

    Abacus Exercise

    Hirokazu Komatsu

    Use , customize size and position, adjust

    Use an with customizable size, position, and color settings. Perform calculations up to 15 digits. Challenge addition, subtraction, multiplication, and division problems. Adjust bead sounds and screen orientation for horizontal use.

    ★ 4.553 ratingsEducationFreeData updated 2026-09-06
  12. The Calculator Pro· app icon

    The Calculator Pro·

    KISSAPP, S.L.

    Calculate, convert, and solve with ease

    Offers seven-in-one functions including basic, scientific, and unit conversion tools for currency, distance, weight, time, and data. Switch between modes by rotating the device. View operation history on the screen. Use degree or radian settings.

    ★ 4.5153 ratingsUtilitiesFreeData updated 2026-09-16

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.