Alternativas ao Mailtrain para WooCommerce com licença gratuita

• WooCommerce
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Apple Watch iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Shopify Magento Community Edition WooCommerce Amazon SES (Simple Email Service) Zapier Facebook Ads
• Licença gratuita
  Qualquer licença Licença gratuita Licença Open Source Licença comercial