Some devices have multicast filtering in developer options. Improves battery life with no root required.Goddamit!
This app was ahead of its time and people didn't know how to appreciate it.
I am dying because of qcom_rx_wakelock which is caused by wifi multicast and DHCP on my school dorm network. Can't do **** about it cause it's a kernel wakelock. This app would be so helpful now. I would pay 20-30$ anyway for an app like this. I hope the dev comes back to save us.