Alternatif untuk Kartra untuk Self-Hosted dengan lesen sumber terbuka

• Self-Hosted
  Semua platform Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Windows Mobile
• Lesen Open Source
  Mana-mana lesen Lesen percuma Lesen Open Source Lesen komersil