whatsapp is a free download for all
phones iPhones Androids Windows
blackberries and Nokia once you sync
your contacts you can see which of your
friends also use the same app send
messages back and forth photos and even
group chat all for free over a strong
internet connection whatsapp is free to
use the first year you download it but
costs a dollar a year after that and
soon they'll be adding free phone calls
viber is another great app that works in
a similar fashion to whatsapp that
already allows you to make free phone
calls in addition to free texting as
long as both viber users are connected
to Wi-Fi line is another service that
works on both iphones and androids and
on pcs and again all you need is a
strong wireless connection and you've
got service and that's what makes these
apps so useful when you're traveling
abroad there's no need to change your
mobile plan before you go just make sure
you can connect to free Wi-Fi and you
can communicate with friends and family
easily and for no charge in San
Francisco I'm Kara Tsuboi cnet.com for
CBS News
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