Alternativas ao ProjectMarks para todas as plataformas com licença de código aberto

• Todas as plataformas
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry iPad Android Tablet Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari Internet Explorer Vivaldi Browser BSD Windows Mobile Java Mobile Wordpress S60 Pale Moon Chrome Telegram Firefox OS Microsoft Azure Bootstrap ownCloud
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial