Please Help
Response from developer
Hello, I just became aware of this issue under iOS17. Will work and release fix asap! Thanks for reporting it!

Access a comprehensive reference for structural steel shapes, including multiple AISC library versions. Easily switch between imperial and metric units, sort sections, and perform quick searches. Print or share section properties and cross-sections.
1.0.4
November 19, 2023
- Fixes issue when returning to Designations list from detail view in iPhone - App rename
Hello, I just became aware of this issue under iOS17. Will work and release fix asap! Thanks for reporting it!
Structural SteelBook is a reference application providing detailed information on structural steel shapes. It includes multiple versions of the AISC (American Institute of Steel Construction) databases, allowing users to access a wide range of steel section properties.
Structural SteelBook includes the latest AISC v15 library, as well as previous versions like v13, v14, LRFD 1-3, and ASD 5-9. It also contains historic AISC databases for comprehensive reference.
Yes, Structural SteelBook allows you to switch between original English units and converted metric units with a tap of a button for libraries 13.2 and newer. This feature is also available for side-by-side imperial/metric equivalencies.
The quick search function in Structural SteelBook allows you to find a specific steel section by typing its designation, such as 'W16 x 89' or 'W1689'. The app will locate the exact section or its closest approximation.
Structural SteelBook is a universal app that runs on iOS/iPadOS (16 and newer) and macOS (10.13 / Ventura). You can buy it once and use it on your iPhone, iPad, and Mac.
No, Structural SteelBook does not contain advertisements. The app is designed to be ad-free, providing an uninterrupted user experience.
Structural SteelBook is available for a one-time purchase of $4.99. This purchase grants you access to all features and libraries across all your supported devices.
Structural SteelBook was last updated on November 19, 2023, with version 1.0.4. Updates typically include new features, library additions, and performance improvements based on user feedback and industry standards.