Learn to use a classic slide rule with this app. It offers precise calculations and an "auto-slide-rule" mode to demonstrate operations. Save and reuse slider positions for frequent calculations.
Pocket Slide Rule Expert by TestTubeGames




163+ iOS apps & games curated and reviewed
Every iPhone needs a few good pocket slide rule expert apps. We benchmark 163+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.




Learn to use a classic slide rule with this app. It offers precise calculations and an "auto-slide-rule" mode to demonstrate operations. Save and reuse slider positions for frequent calculations.




Experience a simple yet addictive game that challenges your speed and unlocking skills. Master the art of unlocking with four distinct game modes and earn in-game currency to unlock upgrades and new levels. Enjoy slick graphics and an original soundtrack.

This app digitally recreates various types of slide rules, offering features not possible on physical models like color options and numeric displays. It includes a slideshow of famous slide rules and is best experienced on larger devices.


Simulates a mechanical analog computer for scientific and engineering calculations. Perform multiplication, division, roots, and trigonometric functions with a digital slide rule.


Transform your phone into a versatile measuring toolkit. Accurately measure length, height, area, and create floor plans using augmented reality. Includes a screen ruler and level tool for various tasks.


This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.


This app digitizes the classic analog calculator, offering a convenient way to perform complex calculations. It includes interactive guides to teach users how to master slide rule techniques, making it ideal for students and professionals alike.


This app makes learning math skills fun for children in kindergarten through fifth grade. It covers a wide range of topics from basic geometry to fractions and decimals through an engaging adventure game. Detailed reports help parents track their child's progress and identify areas for improvement.


This app offers a comprehensive suite of 10 powerful calculators and 10 financial worksheets, designed to handle everything from basic arithmetic to complex scientific and financial calculations. It includes features like unit conversion, currency exchange, graphing, and statistical analysis, making it a versatile tool for students and professionals.


Guide your character through challenging obstacle courses by sliding your finger to change their pose. Test your reflexes and spatial awareness to fit through narrow gaps and avoid collisions. Enjoy a fun and engaging experience with increasingly difficult levels.


This intelligent tool simplifies presentation creation with AI-powered features. Generate entire slideshows with a single click, get AI-assisted outlines, and access a vast library of templates and materials. Manage your documents efficiently and export your presentations with ease.


This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.


This app offers a fully functional scientific calculator and a notepad with automatic note-taking capabilities. Save your calculations and add custom content to notes for easy future reference. It supports multitasking features on iPad and offers optional upgrades for advanced functionality.


This app provides instant, accurate dice rolls for any situation. Choose your dice, tap to roll, and enjoy realistic simulations. Perfect for board games, RPGs, or when you don't have physical dice available.


Master slide rule calculations with this educational app. It offers practice exams covering various scales and provides helpful instructions for solving problems. Track your progress with a unique error metric and traditional percentages.


A straightforward calculator app designed for everyday math, school, budgeting, and shopping. It offers essential functions, a clear interface with large buttons, and a history log for reviewing past calculations. Advanced features include memory functions, percentage calculations, and multi-window support for efficient workflow.


Navigate a minimalist, space-themed world by sliding past obstacles. Compete for the highest score and unlock different skins in this endless challenge.


This app combines the functionality of a notepad with a powerful calculator. It allows users to perform complex calculations using natural language, supports unit conversions, date math, and live currency conversions. Organize your calculations in sheets with text comments and share them as PDFs.




A straightforward calculator app designed for everyday use. It offers a clean interface with essential functions, displaying current calculations and providing a history of your operations. Ideal for users who prefer simplicity over advanced features.