Apps phoning home?
Not on your watch.
Radio Silence is a tiny firewall that lets you block any application from accessing the internet.
It runs on all versions of OS X from El Capitan to Snow Leopard. Radio Silence is made for people who don't want to spend time configuring complex firewalls. You can set it up in a few seconds and then never think about it again.Buy now for only $9 $15
Radio Silence has a risk-free 30-day guarantee. If you're not absolutely happy, you'll get your money back, no questions asked.