Measure atmospheric pressure and altitude. Switch between pressure units like hPa, mmHg, and inches of mercury. Display real-time readings and track changes over time.
by Chen-Yu Wei★ 5.01 ratingsUtilitiesFreeData updated 2026-09-06
Perform complex calculations with a scientific featuring parentheses and functions. Convert units across categories like length, weight, and temperature. Calculate percentages, fractions, and exponents. View editable history and switch between modes.
Calculate volume and weight based on container height. Supports capsule, cylinder, rectangular, and spherical tank shapes. Choose from over 100 types including water, oil, and mercury. Available in metric and Imperial units.
Calculate performance data using actual values from the Cessna 172M Pilot's Operating Handbook. Interpolate values for accurate results. Support for Standard and Long Range Tanks. Display results instantly.
Create and annotate digital whiteboards with AI image recognition and handwriting-to-text conversion. Draw with Apple Pencil pressure sensitivity and use rich tools for shapes and text.
Measure heart rate by tapping on the Apple Watch screen. The calculates beats per minute instantly. Provides real-time BPM readings without requiring additional devices.
Calculate performance metrics such as FAD and leakage. Input system data to estimate energy savings. Save results in files for future reference. Support both SI and USCS units for measurements. Run quick tests to assess system efficiency.
Monitor real-time climate variables from remote sensors. View temperature, humidity, atmospheric pressure, wind speed and direction, precipitation levels, and photosynthetic active radiation. Access sensor data and system information through the .