When it comes to where Apple Pay credit card transactions are happening most, retailers Duane Reade and Whole Foods are first and second place respectively, according to a new TXN data analysis insight.

Canteen Vending, Peet's Coffee & Tea and Firehouse Subs fall in line behind Whole Foods. Surprisingly, Starbucks falls last on the list of the top 13, according to a Business Insider report.

While the total number of monthly Apple Pay transactions grew by 50 percent, compared to a year ago, the study notes Apple Pay holds just a small percentage of credit card transactions.