I think a responsive website is better than an app. More people will visit a website than install their umpteenth app. And in the emails they send to their customers, they can include a direct link to their website, and not a direct link to their app. So my answer is no. What's your opinion? Why are you asking?
In this digital age, Do you think liquor store or beer stores should have smartphone or mobile app for their stores? If yes please share some best apps that is exclusively used for liquor or wine stores?