"[A]ccording to Statista, the digital promotion platform, in 2014 more than 16 billion digital coupons were redeemed, which is expected to grow to 31 billion in 2019. Inmar’s 2014 Coupon Trends Report, also revealed that in 2013, the number of digital coupons redeemed, grew by 141 per cent in the U.S. alone."
— GSMA