2+ similar apps compared and reviewed
Whether you want more options like Engineering Cookbook or a completely different take on the same concept, our curated list of 2+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
This HVAC tool aids in piping system design, offering calculators for friction loss, velocity, and heat load. It includes a Cv tool and a specialized calculator for balancing contractors to determine valve settings and flow rates.
Access a vast database of screw and bolt information, including dimensions, material grades, and strength properties for both US and metric fasteners. Features a comprehensive drill chart, unit conversion, and customizable material displays.
