You could try Verizon Messenger (I haven't used it myself but it's an option).
I do use WhatsApp, and perhaps it knows all of my contacts behind the scenes - it only shows the two contacts that I've added who also use WhatsApp.
If you're worried about WhatsApp, or Google, or Verizon, or (your favorite data mining company goes here), or Big Brother having access to all of this information - well, it's a bit late for that now, isn't it?
Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM -0.001 using Tapatalk 4
07-10-2013 06:49 PM