A startup called Coin claims to have the answer for Costanza Wallet, with a single device that consolidates all your cards. Coin looks like a standard credit card, with a magnetic strip that can be ...

Just over a week ago, I began testing Coin. Billed as a smart card that can replace all of the credit cards and debit cards currently in your wallet, Coin and devices like it stand to bridge the gap ...

Square Wallet. Google Wallet. PayPal. For many years, these mobile payment apps have been heralded as the successors to our overstuffed wallets and purses. Adoption of these services, however, have ...

There’s a card for just about everything: credit, debit, gym memberships, you name it. Carry them all and it quickly adds up to one bulky wallet. Coin aims to change that with the new Coin 2.0, a ...