Alternativy k NumSync pro Firefox s komerční licencí

• Firefox
  Všechny platformy 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)
• Komerční licence
  Jakákoli licence Bezplatná licence Licence Open Source Komerční licence