For licenses purchased after 2018, yes — it performs a periodic online check (every 30 days). Permanently offline activation is only available for very old versions (pre-4.0).
If you're looking for help with Survx 4.0, I'd be happy to provide general information about the software. Survx is a survey and mapping software used for creating and managing surveys, and it appears that version 4.0 has been released with new features.