Again, I'm not a game dev, but D:OS2 seems grid-based to me, even if it doesn't actually visually display a grid like X-COM: aka - you have a finite amount of moves you can make across a specified area, and each move subtracts from the overall total of moves you can make. This is a grid to me. I presume behind the scenes it's a 'grid'.
Looking at the movement system, I wouldn't presume that.
By default, you can move 5.0 meters per AP. However, the distance you move can be changed. Armor can increase or decrease the distance per AP, and points into Scoundrel can increase your AP. Plus there are skills like Haste and Favourable Wind which also boost Movement, and status effects which can alter that as well, and sometimes you can adjust your position with 0 AP moves (I believe if you didn't use the full X meters you are allowed).
