Offers basic, scientific, and programmer modes with history views. Users can share results via email or copy-paste values between apps. The supports iPhone, iPad, and iPod Touch devices.
by Jerry Montgomery★ 4.83,858 ratingsUtilitiesFreeData updated 2026-09-08
Perform basic arithmetic operations, percentage calculations, and unit conversions. Switch between standard and engineering modes for advanced scientific functions. Adjust display settings and access history for repeated calculations.
Perform basic arithmetic operations including addition, subtraction, multiplication, and division. Access scientific functions for advanced calculations. Input data directly for quick results. Store and recall previous calculations.
Track remaining and elapsed with a large dot-matrix clock that changes colors. Configure user profiles and select display modes. Use signal lights to indicate speech phases. Quickly set up and customize the for different presentations.
Simplify expressions and Maps. Input logical expressions or maps. Perform minimization and view simplified results. Support multiple algebra formats. Export solutions and save work.
Perform arithmetic, logical, and memory operations. Calculate modulo, bit shifts, and bitwise functions. Save and load values. Switch number bases and modes via device rotation or screen edges.
Desktop displays time with a style and retro interface. Set focus mode to minimize distractions. Use countdown timer for tasks like cooking or workouts. Adjust settings for time zones and alarms.
Displays calculations in a scrollable format for easy review. Users can track calculation history, perform basic arithmetic, and use a scientific mode for advanced functions. Input and results are visible simultaneously for accuracy.
Perform calculations with real-time results and visible input process. Use scientific and fraction modes. Adjust decimal places and show/hide separators. Access unlimited history. Quick start with backspace and keyboard vibration or sound.
Visualize real-time audio frequencies with a spectrogram and spectrum analyzer. Adjust sample rate and frequency resolution. Identify sound frequencies, measure vocal range, and analyze audio input.