Alternativas ao Grubba.net para todas as plataformas com licença de código aberto

• Todas as plataformas
  Todas as plataformas Windows Mac Linux Android iPhone Windows Phone Apple Watch iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Windows Mobile Wine Amazon Web Services
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial