Facilitates sharing on the platform and acquisition of more people Slack has amazing freemium options and easy-to-understand (reading: transparent) pricing. Get started with all the available features that Slack offers, including integration, document sharing, and built-in features. Free account restrictions do not affect users when they start using their account. It only makes sense to ghost mannequin effect service upgrade when Slack becomes an integral part of your workflow. By that time, you are already crazy! Free account restrictions: The number of searchable messages is locked at 10K Only 10 third parties or custom integrations can be connected Moderate file storage: 5 GB total This is done intentionally. Slack wants to use the product until ease of communication and functionality become a part of everyday life. Then, when you reach the point where you need more storage or more integration, upgrade to the paid model. By then, the product will be integrated into workflow and life. Slack's free trial-to-paid conversion is 30%, demonstrating the long-term rewards of providing value.