Alternatif untuk Sonetso untuk Software as a Service (SaaS) dengan lesen sumber terbuka

• Software as a Service (SaaS)
  Semua platform Windows Mac Linux Chrome OS Android iPhone Blackberry iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) Firefox Safari Slack Facebook Messenger Chrome Twitter
• Lesen Open Source
  Mana-mana lesen Lesen percuma Lesen Open Source Lesen komersil