Precision cut-crystal maker Swarovski is elevating the customer experience across channels with a new rewards mobile application. Loyalty programs become effective when consumers use them frequently and for a range of purposes. Swarovski is ensuring regular use with “Sparkly” rewards or “Sparklisms” that can be earned for a variety of activities and exchanged for prizes. “Apps are important in retail, but to me, choice is the killer app,” said Jeff Hasen, a Seattle-based mobile marketing strategist. “Successful retailers like Macy’s provide multiple ways to engage.