You may have already decided what to use for communications overseas... but here's my 3 cents. My sister travels a lot and she likes WhatsApp, too. It's free the first year, then $1 after that (per *year*!) Someone else has posted about how that works - I'm sure it's great.
The rest of my family, colleagues, and our foreign exchange students use Skype. It's free. WhatsApp is limited to mobile platforms, but Skype works on desktops and laptops, too. I have installed it on my (Android) phone; my sister has it on her iPhone and iPad - we all have it on our PCs, Macs, netbooks, etc... It just works. This feature is nice if you need to stay in touch with people in the US, as well.
We can 'chat' (text message) - it sounds an alert just like a text. We can also send audio or video messages, *and* we can use audio or video chat - love that! Skype allows for group communication, too, however video is limited to 2 people unless *one* person in a larger group has a premium account.
Any type of free communication like Skype or WhatsApp is essential while traveling! Just remember to use wifi to avoid data/roaming charges ; )
Milton Town School District
Milton VT 05468
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