190+ iOS apps & games curated and reviewed
The best smart slide rule apps on iPhone average 4.4★ across 190+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
Master the art of unlocking with this addictive game boasting four game modes, slick graphics, and original soundtrack. Earn Keys, unlock Upgrades, and achieve over 30 milestones. Play now and test your speed and unlocking skills!
This application replicates traditional slide rules, offering various types and features such as color options and numeric displays, allowing users to perform calculations and estimations with ease and accuracy. Try it out and experience the elegance of slide rules on your device, with features like pinch/zoom and rotation, and discover a brief showcase of famous and interesting slide rules.
This application simulates a mechanical analog computer that was used for various scientific calculations, allowing users to perform operations such as multiplication, division, square, cube, square root, and cubic root. Try it out to experience the classic tool's functionality and explore its capabilities in calculations and engineering design.
This application is a digital slide rule that not only allows for precise calculations but also teaches users how to perform various mathematical operations through its auto-slide-rule mode. With features such as precision controls, customizable buttons, and a range of basic operations, users can quickly and accurately perform calculations and learn to use a slide rule effectively.
A color calculator app that helps users find complementary color schemes for design projects. Simply input a base color and let the app generate harmonious color combinations for your projects. Try it now to elevate your design choices!
Enhance your productivity with a free calculator app for iPad, iPhone, and Apple Watch. Download now to enjoy advanced features and join a community of satisfied users.
Stay ahead with accurate calculations using Calculator Smart. Easily perform simple or complex computations on your iPhone, Apple Watch, or iPad. Download now for free and experience its stunning interface, standard and scientific modes, with over 30 scientific operations.
Experience the digital transformation of the classic analog calculator with an array of measurement scales for various calculations, interactive learning guides, and a user-friendly interface. Master the art of slide rule calculations on-the-go with the convenience of a compact 12'' slide rule in your pocket.
A simple and intuitive calculator app for iPhone and iPad with advanced functions like percentages, square root, and trigonometry functions. Features history bar, multiple themes, voice input, and haptic feedback. Try it out and have fun calculating!
This all-in-one calculator app is designed for everyday use, offering a range of features including unit and currency conversion, photo problem solving, scientific calculations, and handwriting recognition, as well as utilities for tracking date differences and calculating BMI. Get instant step-by-step solutions and smart assistance for numbers and daily tasks with this convenient and comprehensive tool.
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.
Calcbot 2 is an intelligent calculator and unit converter with a history tape, expression view, intuitive conversion, and more features. Easily save and refer to calculations, view everything you've typed, convert units, access scientific functions, and round results - all in one app.
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!
A versatile graphing calculator app with advanced scientific functions, graphing capabilities, unit conversion, constants, table generation, educational resources, and statistical tools. Perfect for students and professionals in math and science fields. Discover a world of mathematical possibilities in one convenient tool.
A handy math assistant for solving basic and scientific calculations intuitively and quickly. Become a math master with this free app!
Get instant step-by-step math problem solutions with this ad-free app. Stop struggling and download now for free!
Solve math problems instantly with our Math Solver AI Homework Helper app. Just snap a picture of the problem and receive accurate answers with clear explanations. Perfect for students, teachers, and math enthusiasts. Download now for a seamless math-solving experience!
This application is a comprehensive tool for all types of calculations, ranging from basic math to advanced scientific functions. Try it out now to simplify your calculations and mathematical tasks.
A simple and user-friendly calculator app with memory function to review past calculations and history. Features big buttons, basic operations, memory tracking, different themes, and is ideal for various daily tasks. Download now for your iPhone or iPad to simplify your calculations.
A versatile and user-friendly calculator application for Apple devices, featuring themes, haptic feedback, tip calculation, unit conversion, and more. Simplify your calculations with Calculator 3.0 - available now for free on Apple Watch, iPhone, iPad, and iMessage!