Relay.app is an automation tool with a Human-In-The-Loop feature that pairs AI assistance with human judgment across your workflows.

Relay.app is an automation tool built around a “Human-In-The-Loop” feature that lets teams embed manual steps directly into automated workflows. This adds human judgment and context where they matter most — particularly in outgoing communications — and sets it apart from many other automation tools.
Beyond standard trigger-and-action automation, Relay.app combines AI assistance with human collaboration. You can add AI help to workflows without writing prompts, bring teammates in for specific tasks, and build collaborative playbooks with assigned roles. The tool integrates with platforms including Airtable, Calendly, Gmail, Salesforce, and Slack.
Relay.app was created by Benjamin Borowski. Its defining feature is the Human-In-The-Loop functionality, which weaves manual steps into automated processes to add judgment and context.
For fast-growing companies, Relay.app reduces manual tasks and saves time by pairing AI automation with human oversight.
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