225+ iOS apps curated and reviewed
The best 10 key calculator apps on iPhone average 4.6★ across 225+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
This app emulates a traditional 10-key adding machine for precise calculations. It offers features like reversed operator entry, percentage calculation, and the ability to edit and save paper tape files. The iPad version includes a full-size keypad with audio feedback for enhanced accuracy.
A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.
This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.
This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.
This app functions as a virtual adding machine, complete with a scrollable tape that displays your calculations as you enter them. It allows for editing, copying, and exporting your tapes, offering a convenient way to track and verify sums.
This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.
This app allows enrolled real estate agents to manage referrals, submit updates, and record important notes. It provides a streamlined way to handle brokerage-assigned leads and track their progress.
This app provides a straightforward calculator experience with a comprehensive history log of all your computations. Customize the keyboard, display, and history records to suit your needs. Easily add annotations and titles to past calculations for better organization.
This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.
This app offers a calculator with an editable, line-by-line tape history, combining spreadsheet-like functionality with calculator simplicity. Easily correct mistakes, add comments, and share or print your calculations.
Access daily, weekly, monthly, and yearly horoscopes tailored to your zodiac sign. Explore astrological insights, compatibility readings, and Chinese horoscopes. Customize your experience with themes and reminders.
This calculator app offers tax and point-of-sale features with an editable paper tape history. It's suitable for everyday calculations, invoicing, and tax preparation, with options to export and save tapes.
This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
A user-friendly calculator with essential functions and advanced features like tax and discount calculations. Easily reuse past calculations or edit expressions with intuitive controls. Offers customization options for themes and fonts.
This app provides a basic calculator with an electronic paper tape to track and correct entries. It offers six independent calculators with custom colors, a large keyboard, and a decimal slider. It also features an enhanced percentage key for discounts, tips, and sales tax calculations, with the ability to email results.
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 provides a large-key calculator with a virtual paper tape for reviewing calculations. It allows users to email tapes, add comments, and reuse numbers from previous entries. Customize keyboard layouts and display formats for an optimized office experience.
This app provides a convenient way to perform calculations involving feet and inches. It features a visual tape measure display and supports fractions and mixed decimals, showing results in feet, inches, and centimeters.
This app is a versatile unit and currency converter with a user-friendly interface. It supports a wide range of conversion categories, including real-world and crypto currencies, with automatic exchange rate updates. Customize your experience with design options, dark mode, and adjustable home screen layouts.