Replit

Replit is a mobile-first development environment that allows users to create and deploy applications, websites, and games directly from their phone. It emphasizes rapid development through natural language prompts, instant hosting, and real-time collaboration, supporting various programming languages and frameworks.

Replit is a strong match for the Retool concept. It explicitly states its ability to 'create and ship real projects, apps, games, and more right from your phone,' and highlights features like 'Instantly host anything with zero setup deployment' (flexible-deployments), 'Create in any language and any framework' (code-customization), 'Use ReplDB to quickly spin up databases for any project' (api-database-integrations), and 'Build websites and apps with natural language using Replit Agent' (ai-app-assistant). The mention of 'real-time multiplayer collaboration' and 'clone and remix projects from over 33 million creators' also aligns with the collaborative and rapid development aspects of low-code platforms. While it doesn't explicitly mention drag-and-drop UI, the focus on 'natural language prompts' and 'no-code needed' suggests a simplified interface for app creation. The 'partner & customer portals' feature is also supported by the ability to 'set up custom domains for any of your projects' and 'use replAuth to easily configure login for your project's users' for external access.