Alternativas ao dtsearch para Invantive Studio com licença de código aberto

• Invantive Studio
  Todas as plataformas Windows Mac Linux Web Self-Hosted Wine Microsoft Office Outlook Docker Invantive Studio Invantive Data Acces Point Invantive Composition for Word Invantive Control for Excel Invantive Query Tool Invantive Scheduler Invantive Vision Invantive Accounting-modules Invantive Web Service Invantive Estate VirtualBox
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial