Alternativer til Skeduly til Self-Hosted med gratis licens

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