Ticari lisanslı Software as a Service (SaaS) için iGTD'a alternatifler

• Software as a Service (SaaS)
  Tüm platformlar 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
• Ticari lisans
  Herhangi bir lisans Ücretsiz lisans Açık Kaynak lisansı Ticari lisans