Excerpt from this article, via @whatleydude:
Unlike previous crises, however, refugees aren’t making the journey blind. Smartphones are ubiquitous among the crowds, aid workers say — empowering migrants to make smarter decisions and transforming the way that aid is delivered to them.
Srba Jovanovic, an aid worker for a coalition of charities in Serbia called Refugee Aid Serbia, told Business Insider that nearly every young male refugee he sees has one. The devices provide a lifeline for people to their families and friends — apps like WhatsApp, Viber, and Skype are all widely used, and they allow them to avoid the prohibitively high costs of making traditional phone calls across borders.
Google Maps is another very popular app. It means refugees are able to make their own way like never before, without having to rely on the high prices and often horrendous conditions offered by people-traffickers. Foreign-currency-conversion calculators are another popular choice, helping people to avoid getting ripped off as they cross borders and currency areas.