Alternativa Springseedu za Kindle Fire z licenco odprtokodnega vira

• Kindle Fire
  Vse platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) BSD Xfce PortableApps.com Chrome
• Open Source licenca
  Vsako dovoljenje Brezplačna licenca Open Source licenca Trgovsko dovoljenje