There's a game on my Android device that uses up quite a bit of data even though I checked the "Restrict background data" box for the application in the Mobile data panel. I've also ensured that I close the application properly by swiping it off the app switcher screen (or hitting clear all).
I'm looking for an application that allows me to restrict all data for specific applications. The only time I would be playing the game would be on a Wi-Fi connection, so it shouldn't use any data at all. A nice feature would be to limit the amount of data the app can use according to the billing cycle set in the device instead of cutting it off completely but that's optional.
Right now I've resorted to completely turning off mobile data and intermittently re-enabling it to check social media or whatever else that requires Internet connectivity, but it's not an ideal method as I'd like to leave data enabled to receive notifications and email more quickly when I'm away from Wi-Fi areas.
I am running Android 5.1 on an unrooted LG G4.
I've already looked at these questions: