The app features large, easy-to-read keys for fast input and a permanent display of the user's expression. Results appear automatically as typing occurs, eliminating the need for an equals key.
by Andre Ponzo★ 4.84 ratingsProductivity$1.99Data updated 2026-09-12
Perform calculations with advanced operators and scientific functions. Use trigonometric, logarithmic, and round functions. Calculate tips and discounts. Edit expressions on the fly with a magic cursor. Share results directly.
Perform complex calculations with scientific, engineering, and hexadecimal modes. Use RPN and multi-line display. Convert units and access constants. Undo and redo actions. Sync with Apple Watch for on-the-go calculations.
Perform calculations with live voice input. Use an ergonomic key layout with an extra large "+" key and backspace function. Copy and send results via email. Support dark mode and retina display on all iPads and iPhones. Track usage history.
Calculate intervals with precise unit conversions. Adjust decimal and thousands separators for regional settings. Customize display formats for results. Access in- settings to modify feedback type and default formats.
Calculate fractions by adding, subtracting, dividing, and multiplying. Convert fractions to decimals. Adjust recipe quantities for different serving sizes. Review math problems quickly and accurately.
Perform calculations with a freeform canvas and responsive results. Link numbers for instant updates. Calculate tips and discounts. View full history with clear formatting. Adjust settings for precision and layout.
Calculate mathematical expressions in real time with live updates. Edit and restructure equations dynamically. View step-by-step solutions and adjust variables on the fly. Share results via copy-paste or export as images.
Access over 50 inputs in portrait mode. Save calculation history until the is closed. Edit, copy, and paste calculations from history or output. Paste clipboard content directly into the .
Perform calculations with a standard featuring extra-large buttons and functions like delete, x², √, and %. Use a scientific with 30 advanced functions. Convert units, calculate loans, and determine tips.
Calculate mathematical expressions with a high precision engine. Display results in real-time while typing. Undo multiple steps and switch between workspaces. Save history persistently. Use specialized keypads for iPhone and iPad.
Perform calculations using reverse Polish notation. Swipe to undo or redo operations. Access a 100-entry stack and 6 memory buttons. View large, easy-to-read displays. Save state on exit. Supports scientific functions and multiple undo/redo levels.
Perform calculations with a running total and real-world logic. Handle cost, sell, and margin computations. Add or subtract percentages in one step. Features large buttons and a clear display for easy use.