Alternativ till Twpolls för Self-Hosted med kommersiell licens

• Self-Hosted
  Alla plattformar Windows Mac Linux Android iPhone iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) PHP Java Mobile Slack MailChimp Trello Salesforce.com HubSpot Google Drive - Sheets Intercom Autopilot
• Kommersiell licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens