Alternativ till Formstack för Software as a Service (SaaS) med öppen källkodslicens

• Software as a Service (SaaS)
  Alla plattformar Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) Wordpress Slack Microsoft Office 365 Chrome Web Store MailChimp Trello Salesforce.com HubSpot Google Drive - Sheets Intercom Autopilot
• Open Source-licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens