Alternativy TinyLetter pro všechny platformy s licencí open source

• Všechny platformy
  Všechny platformy Windows Mac Linux Chrome OS Android iPhone Apple Watch iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Python BSD Windows Mobile Wordpress Facebook Shopify Magento Community Edition WooCommerce Solaris MailWizz EMA Amazon SES (Simple Email Service) PrestaShop Drupal Zapier Facebook Ads
• Licence Open Source
  Jakákoli licence Bezplatná licence Licence Open Source Komerční licence