Apple's (NASDAQ:AAPL) mobile payment solution could be great for Square (NYSE:SQ).

The fast-growing payment processor believes the ongoing shift to NFC-based mobile payments, led by Apple Pay and Alphabet's (NASDAQ:GOOG) (NASDAQ:GOOGL) Android Pay, will provide a boost for the company. Apple Pay and Android Pay aren't new, but they remain in their infancy, presenting Square with an opportunity.

Giving new meaning to the Square logo

Square launched its mobile payment solution in the fourth quarter last year. The $49 reader accepts both NFC-based mobile payments and credit cards equipped with EMV chips. Demand has been strong; Square has sold nearly 500,000 of them to date. Square's hardware revenue rose 634% last quarter on an annual basis and 154% sequentially as its merchant partners upgraded their equipment.

Merchants that can't accept EMV cards can now be held liable for fraudulent charges, creating an obvious demand for EMV readers among Square's network of sellers. But CEO Jack Dorsey is more excited about the prospects of NFC adoption, viewing it as an opportunity to associate the Square brand with a new method of payment. He reiterated this notion repeatedly on the company's earnings call back in February and then again earlier this month.

We want to be able to associate our logo with the ability to pay with your phone...we think there's a huge potential for us to really win the behavior...we believe the opportunity for us is first and foremost, to associate our logo with the new behavior...we think there is [an] opportunity now...[around] actually paying with your phone...the biggest opportunity for us, is we get to associate [NFC payments] with the logo. If you see a white square, you know you can pay with your phone, and you just don't have that predictability with any... other hardware. We think there's a great opportunity associated with Square Logo with the fastest way to pay with your phone...Where we think the opportunity is is anytime people see a Square logo on the countertop or in someone's hand, they know they can pay with their phone and their mobile device...I do believe we have an opportunity to associate our logo with paying with your phone and we're starting to realize that.

Square CFO Sara Friar echoed Dorsey's comments during the company's May earnings call:

It's a core strategy and push for us in 2016 is how do we make sure that the Square logo is what everyone sees and then knows that that's what they can use to pay with their phone.

NFC payments remain a small niche

Mobile payments aren't new. Google launched Google Wallet in 2011, bringing NFC payments to certain Android phones. Apple followed in 2014 with Apple Pay, and then Google expanded and rebranded its mobile payment solution last year with the introduction of Android Pay. Yet adoption has been slow.

All mobile payments, including Apple Pay and Android Pay, account for less than 1% of US card transactions. To some extent, that's driven by hardware -- many retailers lack the appliances necessary to accept NFC payments. By associating itself with NFC, Square could become the go-to payment provider for merchants looking to give their customers the ability to pay with their phone.

Last month, at the Coachella music festival, Square was the sole provider of point-of-sale solutions: All Coachella merchants used Square's latest reader to accept payments. Of those customers who chose to pay with a card, about 10% used a mobile payment service. Obviously, that still represents a small minority, but it's about 10 times the national average, suggesting that Square's hardware could meaningfully improve mobile payment adoption, further strengthening the link between the Square brand and mobile payments.

Building a bigger ecosystem

Mobile payments are remarkably secure, convenient, and fast -- much faster than EMV card payments, which are often faulted for their sluggishness. "NFC [is]... super, super fast. One of the complaints that we have heard around chip cards is they're a little bit slow," said Dorsey on the company's February earnings call. By speeding up the payment process, Square can increase the satisfaction of its merchant partners and perhaps improve their business.

Ultimately, Square's goal is to expand its ecosystem of sellers, generating more payment volume and growing the potential base of customers for services like Square Capital and Caviar. Square doesn't need NFC payments to succeed, but it presents an opportunity for the company to expand its customer base. Dorsey underlined the opportunity on the company's earnings call earlier this month: