Stacker is a no-code platform designed to help entrepreneurs and businesses create customizable web applications based on existing user data from tools like Airtable, Google Sheets, and Salesforce. It enables users to build apps that serve as customer relationship management (CRM) tools or client portals, enhancing communication and collaboration within teams and with external stakeholders. Stacker is ideal for medium to large companies, startups, and freelancers, providing streamlined solutions for managing business processes and mobile workforce tasks. The platform offers various subscription plans, with a free tier for app building, though launching requires a paid plan. In comparison to other no-code platforms like Bubble, Stacker excels in integrating with pre-existing datasets but lacks Bubble's comprehensive app-building capabilities and built-in database. Bubble provides a more extensive free tier offering, allowing users to develop apps with full functionality before committing to a paid plan.