Box

Box is the file service that puts the permission model in your face rather than hiding it. Every folder carries explicit collaborator roles, expiring shared links with password and download toggles, and an admin console built around governance, retention, and audit trails. The interaction language is web-first and deliberately corporate: a center grid of files, a right rail of details and activity, granular access controls one click deep. This makes it legible to compliance teams and slightly heavy for casual use. Its strength is the activity feed and the auditability of who touched what and when. The weakness is speed and polish; the web app feels enterprise-sturdy rather than fast, and consumer-grade niceties like fluid previews lag behind lighter rivals.