Alternativas ao footnote para Software as a Service (SaaS) com licença comercial

• Software as a Service (SaaS)
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari Internet Explorer BSD Windows Mobile Xfce PortableApps.com Chrome Firefox OS Termux
• Licença comercial
  Qualquer licença Licença gratuita Licença Open Source Licença comercial