Alternativ till Flexible Datasync för Self-Hosted med gratis licens

• Self-Hosted
  Alla plattformar Windows Mac Linux Chrome OS Android iPhone Windows Phone Apple Watch iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Xbox Playstation Windows Mobile Java Mobile Apple TV Node.JS npm Unity Unity Web Player MongoDB expressJS
• Gratis licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens