Yes. Scedule supports all calendars that you synchronize with your Smartphone or Outlook – private and business calendars. In times of flexible working hours, it was important for us that you can also let Scedule reflect the availability from your private calendar. Because you probably do not enter a doctor's appointment into your business calendar.
Of course you continue to use your default calendar such as Google, Apple's iCloud or Microsoft Office 365 calendar as usual. Scedule will then automatically transfer the new appointment to this default calendar. Thus, Scedule does not aim to replace your calendar but to extend it by the essential possibility of an easy appointment arrangement.
You can also watch this short video to see how to consider your calendars.