Alternativas ao SmartAmount para todas as plataformas com licença de código aberto

• Todas as plataformas
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Apple Watch iPad Android Tablet Kindle Fire Web Self-Hosted Software as a Service (SaaS) PHP BSD PortableApps.com S60 Apache HTTP Server MySQL Community Edition CrossOver
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial