Square is an electronic payment service as well as the name of the payment card reading device designed for this purpose. Square allows users to accept payment cardsthrough their mobile phones, either by swiping the card on the Square device or by manually entering the details on the phone. Introduced in early 2010 by Square Inc. The Square application is currently available for the iPhone, iPod Touch, iPad and Android-based mobile phones, and is expected to be available for laptops at some point in the future. Square was founded by Twitter creator Jack Dorsey.
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- Mobile Payment Service Square Comes to the Masses (observer.com)
- Square Credit Card Reader is Now a Go (intomobile.com)