具有免费许可证的Kindle Fire版Docshare.tips的替代品

• Kindle Fire
  所有平台 Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Apple Watch iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Windows Mobile Wordpress S60 Microsoft Office Powerpoint Tumblr
• 免费许可证
  任何牌照 免费许可证 开源许可证 商业牌照