Alternatívy programu GyazMail pre Windows S s licenciou zadarmo

• Windows S
  Všetky platformy Windows Mac Linux Chrome OS Android iPhone Apple Watch Android Wear iPad Android Tablet Windows S Web Self-Hosted BSD Xfce Haiku PortableApps.com Slack F-Droid Ruby Gmail GNOME Cloudron Amazon Echo (Alexa Voice Service) OpenPGP PureOS (Purism) S/MIME
• Bezplatná licencia
  Akákoľvek licencia Bezplatná licencia Licencia Open Source Obchodná licencia