Alternativer til GravityDev til Ruby on Rails med kommerciel licens

• Ruby on Rails
  Alle platforme Windows Mac Linux Android iPhone iPad Web Self-Hosted Software as a Service (SaaS) BSD Chrome Ruby MySQL Community Edition Cloudron MariaDB Ruby on Rails Microsoft SQL Server PostgreSQL
• Kommerciel licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens