Mobile payments apps are used by more than two billion people globally, with millions more coming online each year. In India, South-east Asia and South America, some of the younger generation skipped the usual process of owning a credit or debit card, in favour of using mobile apps. Adoption of mobile payments is weakest in developed nations, such as Germany and France, which are finding it hard to ditch cash and cards. Even in the United States, adoption rates trail developing nations by a c...