Home / Collaboration / PlainPPlainThe support platform for B2B SaaSReviewed byRoman KAboutModern customer support tool with Slack, email, in-app chat. API-first and engineer-friendly.supportb2bapi-firstslackMetricsMore in CollaborationLinearIssue tracking for modern teamsNotionAll-in-one workspaceSlackBusiness messaging platformGitHubCode hosting & collaboration