[necessity]

Probably better to block ads on your cellphone via hostfiles or a custom nameserver that blocks ads. Try turning your phone on and sniffing its packets with tcpdump on a notebook (use Wireshark to decrypt if WPA). You'll be surprised by the amount of servers from ad companies that are contacted before you even unlock your screen, if you let apps start at boot.

[majewsky]

I suppose that requires root access?

[y4mi]

hostfile yes, dns no

[pihole](https://pi-hole.net/) is a project aimed only at that niche.

[majewsky]

I know, I have something like that in my home network. But that doesn't help when I'm in the office or somewhere else.

[necessity]

Yes.