The app performs HVAC calculations for building energy use. It helps users calculate SFP, temperature efficiency, air velocity, duct dimensions, and pressure drop.
The app provides tools for amateur radio operators and RF hobbyists. It offers antenna-length calculators, frequency-to-wavelength conversion, VSWR and ERP calculators, and signal utilities for DTMF and Morse code.
Learning provides 560 diagrams and for studying body systems. Users can browse diagrams by body part including head and neck, thorax, abdomen, arm, and leg. Features include zooming, rotating, and labeling structures for review and revision.
