Mobile payment systems using technologies like NFC have seen growing adoption, with 66% of people using their smartphones to make purchases. An estimated $75 million was spent using mobile payments in 2015. Case studies found that systems like LevelUp and Square helped businesses like cafes and Starbucks increase revenue and customer loyalty through easy-to-use mobile payment options. Business managers note that mobile payments change how consumers shop and provide loyalty and analytics benefits. Such systems appeal to tech-savvy customers and can offer lower fees and decreased checkout times compared to credit cards.