Square’s hugely practical card reader can be used on its own or to supplement your static business by allowing the processing of mobile card or contactless payments on the go.

It’s rare for any startup to have as symbiotic a relationship with a single hardware device as Square has had with its credit-card reader. The original version, which debuted in 2009 ...

In 2009, when Square unveiled its original credit-card reader, one meaningful fact about it was the connector it used. The tiny white doohickey commandeered a smartphone’s headphone jack as ...

Square is now offering a device that also accepts payments made from an iPhone---and it's going on sale at Apple stores.

Square Reader has launched in Australia allowing merchants to accept credit and debit card payments from their iOS and Android smartphone or tablet.

Square is launching a new card reader that also takes Apple Pay. But as a trial run showed, showing people how to pay in a new way is hard.

Any card reader on the market can be deconstructed. The chip could be crushed and then reassembled by using the undamaged shell of the reader. At Square, we have processes in place to prevent ...

The Square Reader, which uses a card swipe to make transactions, has now been followed by Square's contactless and chip card reader, which launched in Australia Tuesday.

The Square Reader has helped lower the barrier to entry for many small retailers keen to take payments on card. Now, though, new research reveals that it’s possible to turn one of the readers ...

Funded by Kickstarter and designed by Charles Mercader and Sam Dominguez, the Square Hoodie acts as a case of your reader, as well as its loop.

Square recently released an improved, redesigned card reader. Current Square users will need to request a new one.