Mobile Musings: A Round Peg for a Round Hole

My friend wanted to be able to alert his customers and prospects when he sent out important emails they needed to see, such as a sale on a product they regularly order, if a certain product came back in stock, if a product was being recalled, if a new brick-and-mortar store is opening and so on. He thought a mobile app would be the right tool for this job, but an app isn’t the best tool for outbound communication with customers.