Browse by complexity
Three honest build levels.
Native only. Native plus an app. A custom build. Teams usually buy the app before they have checked where native HubSpot already stops.

Native only
Properties, pipelines, workflows
Owner assignment, lead rotation, required fields, and a single deal pipeline. Stay here while the rule fits in one workflow.

Native + apps
A tool for one gap
E-signature, a CPQ app, a payment link, a map. The app owns one job. HubSpot still owns the record.

Custom build
Objects and permissions
Partner hierarchies, multi-brand portals, and data models no standard object can carry.
Territory shows the difference.
Simple regions stay native. Overlapping product territories need a custom object. A map on the wall is an app, not the ownership model.