Alternativa Cleou za Facebook Messenger z licenco odprtokodnega vira

• Facebook Messenger
  Vse platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Apple Watch iPad Android Tablet Kindle Fire Web Self-Hosted BSD PortableApps.com S60 Facebook Messenger Chrome Google Drive Google Apps Asana CrossOver Spiceworks
• Open Source licenca
  Vsako dovoljenje Brezplačna licenca Open Source licenca Trgovsko dovoljenje