Alternativer til Cariibou til Software as a Service (SaaS) med gratis licens

• Software as a Service (SaaS)
  Alle platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Android Tablet Kindle Fire Web Self-Hosted Software as a Service (SaaS) Windows Mobile Java Mobile iOS F-Droid Ubuntu Debian CentOS Windows Server 2012 Red Hat Windows Server 2008 R2
• Gratis licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens