Slack offers a wide range of apps that can enhance its functionality, making it an effective hub for businesses. These apps provide features such as project management, task tracking, team building, and wellness tools to support various aspects of business operations. Many of these apps are free and can be easily integrated into Slack's workflow, streamlining communication and collaboration among teams. The best part is that users don't need any coding knowledge to build their own custom Slack app using Zapier.