SISTRUM.PRO is an online audio and video review platform that helps clients, contractors, and production teams manage feedback and approvals in one place. Rather than relying on scattered chats, emails, and voice messages, users can discuss media projects on a shared timeline, attach comments to specific moments, and track revisions clearly.

Contractors upload audio or video files and invite clients to review them. Clients can leave precise feedback, while updated versions and project history remain accessible in the same workspace. Once revisions are complete, clients can approve the final version directly through the service. This workflow is designed to reduce misunderstandings, duplicate edits, and delays.

The platform supports a range of media work, including music, mixing and mastering, sound design, video editing, voiceovers, podcasts, interviews, and advertising content. It is aimed at freelancers, studios, teams, agencies, and companies that regularly produce media. SISTRUM.PRO offers a 30-day free trial and paid plans with different limits for active projects, storage, and file versions; some studio features are listed as coming soon.