Alternativ till Mark the meeting för Apple Calendar med kommersiell licens

• Apple Calendar
  Alla plattformar Windows Mac Linux Chrome OS Android iPhone Windows Phone iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) jQuery Windows Mobile Slack Microsoft Office Outlook Chrome Google Calendar Drupal Google Apps Microsoft Exchange Server Apple Calendar
• Kommersiell licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens