Archived App (Last seen on 10 Sep 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
Price history
Rating summary
About
Quickly interpret NFPA 704 signs, also known as safety squares, fire diamonds, or hazard diamonds.
What's New in Safety Square
1.0
March 6, 2024
