Seems like something like Skype or even Viber would be even better alternatives in various aspects. In the end it really mainly depends on what the majority of those you want to be in touch with use (for whatever reason).I don't get the popularity of WhatsApp. You can only use it from your Phone - not from a PC or other device. I'm looking at a computer screen most of the day. But only look at my phone from time to time.