具有商业许可证的Amazon Echo (Alexa Voice Service)版SlideMail的替代方案

• Amazon Echo (Alexa Voice Service)
  所有平台 Windows Mac Linux Chrome OS Android iPhone Apple Watch Android Wear iPad Android Tablet Windows S Web Self-Hosted BSD Haiku PortableApps.com Slack F-Droid Chrome Ruby Gmail Cloudron Amazon Echo (Alexa Voice Service) PureOS (Purism)
• 商业牌照
  任何牌照 免费许可证 开源许可证 商业牌照