The Division's companion app has been scrapped
A rep from developer Massive told IGN that the companion app feature “created an imbalance" that compromised the team-based competitive gameplay.
The companion app let players control a drone that could debuff the armour of an enemy, up the damage of teammates, heal an ally, spot enemies on the battlefield, or even launch an attack from space. It’s not all that surprising that it was found to be imbalanced.