User-Level Apps: Build Apps That Respect Individual User Permissions

What it is

User-Level Apps, free across all hubs and tiers on platform version 2026.09 and later, let third-party developers build project-based apps that act on behalf of a specific HubSpot user rather than with broad, portal-wide access. Every app action is evaluated against that connecting user's own object-level, field-level, and role-based permissions at runtime, and audit logs reflect the actual user behind each action.

Why it matters

This is a developer-platform change, not something an admin configures directly in the portal. If you build or commission custom apps against HubSpot, it's worth knowing account-level access no longer has to mean broad access; most operators reading this can skip it, since it matters to whoever writes your app's code, not to your day-to-day settings.