Square Cash
lets you send money to your friends by email! Simple and fast, no need
to create an account, no need to add friends, no surcharges to pay,
simply compose an email to the person you want to send the money to,
type the amount in the subject title, and send the money immediately on
its way. If you´re a first time user, you´ll need to type in your debit
card number on the square website, it will be permanently linked to your
email. The money deposits happen within 1-2 business days.
Available now for Android and iOS