There’s a wave of single-purpose apps, a category whose popularity has reached a tipping point. Consider the many firms that, as Uber does with cars, promise the delivery of a service in physical space at the tap of a button.
Shortcut: A grooming service for men that brings a professionally trained barber to your home, office, or hotel.
Minibar: Drops a bottle of alcohol at your doorstep.
Doughbies: Delivers freshly-baked treats.
JetMe: Uber for private jets.
Eaze: A marijuana-delivery service.
zTailors: A network of mobile tailors for both men and women.