Thought it was for topology
It’s an app that doesn’t let you import nor do much. It doesn’t show you how topology works, it shows you volume percentage (if I’m correct).
Not enough ratings yet to assess TopOpt 3D.
TopOpt 3D appears to be a legitimate app. AppsHunter Legitimacy Score for TopOpt 3D is 80/100.
Based on 80 of 100 points across 7 verification signals from App Store and developer data.