Four industries. One calendar.
Health, beauty, consulting and fitness are booked online most often worldwide. The appointment is often made when nobody answers the phone.

Health
fewer phone calls at reception.

Beauty
Gaps become visible before the day begins.

Consulting
A booked appointment blocks only that person.

Fitness
Classes and individual appointments in the same calendar.
At major booking services, almost half of appointments are made outside opening hours.
Source: Treatwell