Xenmark.app
Bluebeam Revu
Procore
Drawboard Projects
Fieldwire
Revizto
Trimble Connect
PlanGrid
api-usage
Xenmark is a browser-based PDF drawing review platform for engineering and construction teams. Upload technical drawings, add annotations and structured comments, track comment status, manage revisions, collaborate with internal and external reviewers, and export structured PDF and Excel comment registers.
Xenmark is designed to keep drawing feedback in one shared project instead of exchanging multiple marked-up PDF files by email.
Only the project owner ever needs a subscription. Reviewers and collaborators are always free, with no additional per-reviewer cost. The Free plan includes one active project, while paid plans increase the number of active projects available.
Xenmark.app api-usageXenmark.app's answer
Only the project owner pays. Reviewers and collaborators join free, with no per-seat cost. Everything runs in the browser, so participants do not need specialist software installed to review and mark up drawings.
Xenmark.app's answer
General PDF tools handle annotation but not structured review workflows. Broader document management platforms can handle those workflows but often price access by participant. Xenmark sits between them: spatial pins, threaded replies, comment statuses, revision handling, and exportable comment registers โ with pricing based on the project owner rather than each reviewer.
Xenmark.app's answer
Engineering, construction, and architecture teams that circulate drawings for comment across company lines โ client, yard, subcontractor, consultant. Most useful where review feedback must be traceable afterwards, not just marked up once.
Xenmark.app's answer
Drawing feedback arrives scattered โ marked-up PDFs, email threads, spreadsheets, chat. Someone then reconciles it by hand and works out what is still open. Xenmark was built to collapse that step: one workspace where comments, replies, statuses, and revisions stay attached to the drawing.
Xenmark.app's answer
Browser-based application built with React and Vite. Supabase provides database, authentication, and role-based permissions. Cloudflare R2 handles drawing and attachment storage; Stripe handles billing. PDF rendering and annotation run client-side.
Bluebeam Revu - The end-to-end digital workflow and collaboration solution trusted by over 1 million AEC professionals worldwide. Revu delivers award-winning PDF creation, editing, markup and collaboration technology designed for AEC workflows.
Procore - Procore is the world's most widely used construction project management software. Easy to use, mobile platform with unlimited user licenses.
Drawboard Projects - Our latest update allows Drawboard Projects users to insert images on Drawings and Documents to add additional context to their reviews, as well as providing further visual content to their project.
Fieldwire - The construction app for project and task management in the field.
Revizto - Revizto is an integrated BIM collaboration software platform that gives owners, designers, contractors, and facility managers the essential tools to streamline the building design and permitting process.
Trimble Connect - Trimble Connect is a collaboration tool specially designed for Architecture, Engineering and Construction professionals such as architect, sub-contractors and project owners.
