My former boss, someone I used to think had a brilliant business mind, at an e-commerce company, forced us to produce a shitty mobile app, and then to pour more resources into it, because of how the average spending of users in-app was higher. I mean, no sh*t, these are people who are such fans of your brand that they want to download a whole dedicated app for shopping at your site. Of course they’re buying more. I have an app for stores I frequent a LOT, but would not see myself installing one for like, stores that I visit maybe once a year. But the causality was in the other direction.