具有免费许可证的GPGTools版AnonymousSpeech的替代品

• GPGTools
  所有平台 Windows Mac Linux Chrome OS Android iPhone Blackberry Android Wear iPad Android Tablet Web Software as a Service (SaaS) Firefox Chromium SeaMonkey Windows Mobile Java Mobile S60 Chrome Thunderbird Gmail OpenPGP S/MIME GnuPG GPGTools DAVdroid
• 免费许可证
  任何牌照 免费许可证 开源许可证 商业牌照