I've stopped using 4sq when they forced to check in through Swarm.
Swarm was constantly monitoring me and eating the battery. At least in Foursquare app you could turn of the 'Radar'.
FYI you can go into iOS preferences -> General -> Background App Refresh and turn off apps that you don't want to run in the background. I've done that with Swarm with no problems, and you can do it with other apps too (Facebook?)
Eating the battery you say? Ok, this is enough. I just uninstalled both apps. I don't need stuff I don't use competing with Ingress over power.