American Express has just announced Serve, their digital payment offering. With Serve, American Express client can send money to others, pay bills, and go online shopping. Users can top-up their Serve account either from their bank account or their debit/credit card. And to make it accessible to everyone, they've rolled out an iOS and Android Serve app. Sure, it's no PayPal-killer, but as they say, competition is always good, and Serve is definitely good competition.
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