What are some alternatives?
When comparing Email Studio for Gmail and ScheduleOnce, you can also consider the following products
If No Reply - Simple email automation that works for Gmail
Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.
Meekan - Connecting the world's calendars
Acuity Scheduling - Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.
SendLater - Email scheduler for Mac Mail.
YouCanBook.me - YouCanBook.me is a cloud-based service which allows your customers to schedule appointments and make bookings.