1. Bubble: A powerful no-code platform for building web applications. It offers a drag-and-drop interface and enables users to create complex applications without writing code. Bubble is popular among entrepreneurs and startups. Pros: Highly customizable, offers a free plan. Cons: Steep learning curve, limited scalability.

2. Webflow: A no-code platform for designing and developing responsive websites. It provides a visual editor and CMS. Webflow is popular among designers and agencies. Pros: Powerful design capabilities, clean code output. Cons: Limited functionality for complex applications, higher pricing.

3. Airtable: A low-code platform that combines spreadsheets and databases. It allows users to create custom applications and workflows. Airtable is popular for project management and data organization. Pros: Flexibility, easy to use. Cons: Limited customization options, can become expensive with large datasets.

4. Zapier: An automation platform that connects various apps and services. It enables users to create workflows and automate tasks without coding. Zapier is widely used for automating repetitive tasks. Pros: Extensive app integrations, user-friendly interface. Cons: Limited complexity in automations, monthly usage limits.

5. Adalo: A no-code platform for building mobile and web applications. It offers a drag-and-drop interface and pre-built components. Adalo is gaining popularity for its ease of use. Pros: Rapid prototyping, good for MVPs. Cons: Limited customization options, lack of advanced features.

6. Retool: A low-code platform for building internal tools and admin panels. It provides pre-built UI components and connects to various data sources. Retool is popular among developers and companies. Pros: Speeds up internal tool development, integrates with many data sources. Cons: Requires some coding knowledge, limited design customization.

7. Google AppSheet: A no-code platform for building mobile and web applications using Google Sheets as a database. It offers automatic UI generation and workflow automation. Pros: Integration with Google ecosystem, easy to get started. Cons: Limited customization options, relies heavily on Google Sheets.

8. Microsoft Power Apps: A low-code platform for building business applications. It integrates with Microsoft's ecosystem and provides a drag-and-drop interface. Power Apps is popular within the Microsoft community. Pros: Integration with Microsoft products, strong enterprise features. Cons: Steeper learning curve, requires Microsoft licenses.

9. OutSystems: A low-code platform for enterprise application development. It offers visual development, pre-built templates, and extensive customization options. OutSystems is popular for large-scale enterprise projects. Pros: Scalability, strong security features. Cons: Higher cost, requires some coding knowledge.

10. Mendix: A low-code platform for building web and mobile applications. It provides a visual development environment and supports collaboration between business and IT teams. Mendix is popular in enterprise settings. Pros: Agile development, good for complex applications. Cons: Steeper learning curve, higher pricing.

These platforms vary in their capabilities, target audiences, and pricing models. The popularity of each platform depends on factors such as ease of use, functionality, integrations, and market focus. It's important to evaluate the specific requirements of your project and consider the pros and cons of each platform before making a choice.