Alternativy k iGTD pro GNU Emacs s bezplatnou licencí

• GNU Emacs
  Všechny platformy Windows Mac Linux Chrome OS Android iPhone Blackberry Blackberry 10 Apple Watch iPad Android Tablet Kindle Fire Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari Internet Explorer BSD PortableApps.com Chrome Microsoft Edge HP webOS Outlook Gmail Firefox OS GNU Emacs
• Bezplatná licence
  Jakákoli licence Bezplatná licence Licence Open Source Komerční licence