具有开源许可证的Sunbird版Polar Liquoo的替代方案

• Sunbird
  所有平台 Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 Apple Watch Android Wear Pebble iPad Android Tablet Kindle Fire Windows S PlayBook Web Self-Hosted Software as a Service (SaaS) SeaMonkey BSD Windows Mobile Java Mobile Haiku AROS S60 Apple TV Chrome MorphOS HP webOS AmigaOS Thunderbird Sunbird Commerscale Trello iCloud
• 开源许可证
  任何牌照 免费许可证 开源许可证 商业牌照