Alternativas ao iGTD para Apple Watch com licença gratuita

• Apple Watch
  Todas as plataformas 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
• Licença gratuita
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