具有开源许可证的Gmail版Lockbin的替代方案

• Gmail
  所有平台 Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 Apple Watch Android Wear Pebble iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Chromium SeaMonkey Windows Mobile Java Mobile S60 Chrome HP webOS Thunderbird Outlook Gmail Firefox OS OpenPGP S/MIME GnuPG Yahoo! Mail GPGTools DAVdroid
• 开源许可证
  任何牌照 免费许可证 开源许可证 商业牌照