What are Smart Surveys?

I have noticed lately in my mobile device app dashboard that a lot of entries for Smart Survey have appeared. What are these entries and how do they differ from the named offline flight plans that I have synced with the app ?

@markwalters Smart surveys were meant to quickly create a flight plan to map a surrounding area based on some default settings. This was mainly meant for 3DR based system. We will be depreciating this feature soon.

@manu thanks for explaining that