Adalo

Adalo is a no-code platform that enables users to build and launch custom mobile and web applications using a drag-and-drop interface. It provides tools for managing data, integrating with external services, and publishing apps to various app stores and custom domains.

Adalo is a strong match for Retool's concept as it is a no-code platform for building custom applications. It explicitly offers drag-and-drop UI building, integration with external data sources (APIs and databases like Xano, Airtable), and the ability to publish to various platforms (web, iOS, Android). While it's primarily no-code, the 'Custom Actions' and 'External Collections with APIs' features suggest a level of extensibility that aligns with 'Code Customization' for integrating custom logic. It also mentions user management and permissions, which aligns with access control. The platform supports responsive design for mobile, offers prebuilt components, and allows for custom branding. The 'Partner & Customer Portals' feature is also supported through the ability to build various types of apps including customer portals.