It might be time to become a little less attached to your wallet. Tech startup Square, which is led by Twitter co-founder Jack Dorsey, announced Monday that it’s working to turn the iPad, iPhone and ...

Opinions expressed by Entrepreneur contributors are their own. The mobile-transactions startup that inspired many entrepreneurs to ditch their credit card terminals is now looking to grab even more of ...

Square has built its reputation as a quick and simple way for micro-merchants to accept card payments, but the company says it has proven it can serve the more demanding needs of larger retailers.