Alternatif untuk NumSync untuk Kindle Fire dengan lesen sumber terbuka

• Kindle Fire
  Semua platform Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox PHP JavaScript Windows Mobile Microsoft Office Outlook Raspberry Pi Chrome Cloudron Flowinity Motti.NET (Programming Language)
• Lesen Open Source
  Mana-mana lesen Lesen percuma Lesen Open Source Lesen komersil