Alternativas ao WebSequenceDiagrams para Google Drive com licença comercial

• Google Drive
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone iPad Android Tablet Web Software as a Service (SaaS) Microsoft Office Word Google Drive Google Drive - Docs Google Apps Microsoft Office Suite Google Drive - Sheets
• Licença comercial
  Qualquer licença Licença gratuita Licença Open Source Licença comercial