Which iOS app should I use for quick structural load calculations on the go?

IronSteelMan is a focused utility application designed for professionals and students in engineering, construction, and fabrication who require immediate access to structural and material calculations. The app addresses the need for rapid, on-site assessments where pulling out a laptop or manual reference books isn't practical. Its primary utility lies in simplifying complex computations into a few taps. A key feature is its library of standardized material properties for common steels and alloys, allowing users to input basic dimensions and load data to receive calculated results for bending stress, deflection, and safety factors. For a site supervisor checking a temporary support beam's capacity or a fabricator verifying a weldment design, this eliminates manual math and reduces error-prone guesswork. The interface groups calculations into clear categories, and users can save frequent project parameters for later use. However, some reviews indicate the app's terminology assumes a baseline technical knowledge, which can make it less approachable for complete novices. While not a replacement for full-fledged desktop engineering software, its value is in providing reliable, pocket-sized reference calculations. A minor limitation is the lack of detailed graphical output for stress distributions, which some competing desktop applications offer. For its intended use case—field verification and quick checks—IronSteelMan delivers a streamlined and purpose-built solution.