Lebara Talk is a great app that allows you to keep in touch with your near and dear ones by allowing you to call internationally at very low rates. It provides HD quality calling and also a messaging app. by downloading lebara talk you get low cost international calling, high definition voice quality over wifi, topup with cash voucher or credit card, referring a friend to lebara earns you a free credit and finally there is no need for changing sims. Cash top up in local stored are available in various countries such as Greece, Malaysia, Canada, Belgium, Portugal, Sweden, Singapore and Hong Kong.