Best Off-Grid System Calculator Apps

PCalc Lite

The Best Calculator

Free

PCalc Lite is the ideal calculator app for scientists, engineers, students, and programmers offering RPN mode, multi-line display, unit conversions, constants, and more. Try it for free on your iPad and upgrade for additional features or themes. Also available on Apple Watch for on-the-go calculations.

Calculator!

by 7th Gear

$0.99

Calculator! is a versatile calculator app for iPad and iPhone with standard and scientific functions. Customize the look, take notes, view history, and perform complex calculations with ease. Perfect for math students and professionals.

Calculator⁼

Fraction, Scientific Calc +

Free

A handy math assistant for solving basic and scientific calculations intuitively and quickly. Become a math master with this free app!

Calculator with History +

No ads & Scientific calculator

Free

A calculator app with a built-in history feature that keeps track of your calculations without any ads. Calculate effortlessly and access your past computations instantly.

GraphNCalc83

Graphing calculator

$12.99

The app is a comprehensive graphing calculator that features algebraic entry, math functions, graph plotting, statistics, matrix operations, unit conversion, BASIC programming, chemistry tools, geometry calculations, finance functions, and a built-in user guide for easy reference. It offers a colorful, fast, and fluid experience on iPhone and iPad with advanced features like touch input, high-resolution graph outputs, and fast computation speeds. Explore its diverse functionality to enhance your mathematical tasks.

PCalc

The Best Calculator

$9.99

A powerful calculator app for scientists, engineers, students, and programmers with features like RPN mode, multi-line display, unit conversions, constants, paper tape, undo/redo, and support for various calculation formats. Also available on Apple Watch for convenient wrist calculations. Try it now!

Sci:Pro Calculator

by Jerry Montgomery

Free

A versatile calculator app with Basic, Scientific, and Programmer modes for iPhone, iPad, and iPod Touch. Easily view history and share results via email or copy. Get precise calculations on-the-go!

Calculator Pro Lite

Best Calculator

Free

A versatile and customizable calculator app offering basic and scientific functions, memory features, history tape, and various layout options. Users can personalize their color themes, access scientific functions, and easily perform complex calculations, all with ad-supported convenience. Explore the app now for a powerful and user-friendly calculation experience!

Big Button Calculator Pro Lite

Easy Basic Calculator

Free

Experience the ultimate iOS calculator with big buttons, dual-line display, 18 color themes, and multi-line input for complex equations. Includes convenient gestures like swipe to backspace and clear. Perfect for all your calculating needs!

Desmos Scientific Calculator

by Desmos, Inc.

Free

Explore a powerful scientific calculator with functions beyond basic arithmetic - trigonometry, statistics, and combinatorics. Create and evaluate custom functions, work offline, view multiple expressions at once, and enjoy a seamless user experience - all for free.

Conversion Calculator Units

Unit Conversion Calculator All

Free

This app is a handy conversion calculator with 12 categories for quickly converting units. Simplify your conversions with ease!

Calculator HD++

by smalltech sarl

Free

Experience a high precision calculator app that offers a user-friendly interface, supports multiple functionalities like undo, switching workspaces, Bluetooth keyboard compatibility, and more. Print and share your calculations with ease and precision for free!

CALC Smart Calculator ±

Basic « Scientific » Advanced

Free

$5.99 | 100% OFF

Try CALC Smart Calculator ± for a versatile and reliable calculating tool. From basic to advanced functions, it's trusted by scientists, professionals, and students. See why it’s Apple-Featured in Utilities and Calculate categories now!

Calculator Pro Elite

Best Calculator

$9.99

A fully customizable calculator app with basic and scientific functions, memory features, and a history tape. Design your own color theme, access scientific functions, and enjoy convenient gestures for a seamless calculation experience. Download now for efficient and personalized calculations on-the-go!

Calca

Advanced symbolic calculator

$9.99

A powerful symbolic calculator with instant answers and Markdown editing capabilities. Ideal for professionals and students, it simplifies complex expressions, solves equations, and supports variables, functions, matrices, and a range of mathematical operations. Access your calculations across devices effortlessly. Upgrade from basic calculators to unleash the full potential of your machine.