Mobile commerce is growing rapidly as consumers spend more time on their mobile devices and shift their preferences and purchasing habits to mobile-first businesses. Nearly all growth in digital commerce now comes from mobile, so businesses that do not invest in a mobile-first strategy risk losing customers and market share. The document provides tips and data for developers to help their clients understand the case for investing in mobile development, including native apps, responsive websites, return on investment calculations, and addressing common objections around customers' preferences, budget concerns, and unclear ROI.