Alternativy k PersistIQ pro Gmail s licencí open source

• Gmail
  Všechny platformy Windows Mac Linux Chrome OS Android iPhone Blackberry iPad Android Tablet Web Software as a Service (SaaS) Windows Mobile Microsoft Office Outlook Chrome Gmail Zapier Pipedrive Salesforce.com
• Licence Open Source
  Jakákoli licence Bezplatná licence Licence Open Source Komerční licence