Alternativ till Tasks för Slack med kommersiell licens

• Slack
  Alla plattformar Windows Mac Linux Chrome OS Android iPhone Windows Phone Apple Watch Android Wear iPad Android Tablet Kindle Fire PlayBook Web Software as a Service (SaaS) Firefox Safari BSD PortableApps.com Slack Chrome GNU Emacs Install Chrome Extensions Google Chrome to Phone
• Kommersiell licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens