Many thanks to @cgf_vfx for tweeting the link!
FX Guide has a post up that details the software that was used for some of the visual effects in Replicas. They looked at various software vendors and eventually settled on iClone software which was used in the production of Replicas the following ways:
-James Martin and John Martin led the previz team in visualising some of the action sequences such as the car crash in iClone.
-There was also conceptual work around the AR infographics that Keanu’s character manipulates, that needed the software for the interaction to work onscreen.
-Finally in post-production, iClone was invaluable in animating the robot when it gains consciousness.