A Lightweight Autodesk Construction Cloud (BIM 360) Alternative for Document Review
The comment-resolution discipline of a construction platform — without the Autodesk ecosystem lock-in or a per-seat cost for every reviewer.
Autodesk Construction Cloud (ACC), which absorbed BIM 360, is a broad platform: document management, design collaboration, model coordination, and reviews tied closely to Revit and the Autodesk ecosystem. If your work is model-centric and already Autodesk-based, that integration is a real advantage. But teams looking for a BIM 360 or ACC alternative for reviews often want something simpler and tool-agnostic: comment resolution on any PDF or document, without paying for a seat per reviewer.
Reviews Without the Ecosystem
Contrat.io focuses on the review loop and keeps it independent of any authoring tool. A document goes out, reviewers comment, the author responds, and a comment resolution sheet (CRS) tracks every item to closure. It works the same whether the source is Revit, AutoCAD, a scanned PDF, or a specification.
A built-in CRS with permanent comment IDs and role-based closure
Free Collaborator seats for every reviewer — no per-seat barrier
Works on any PDF or document, not just Autodesk models
Open comments carried forward automatically between revisions
Contrat.io vs Autodesk Construction Cloud (BIM 360)
| Autodesk ACC / BIM 360 | Contrat.io | |
|---|---|---|
| Scope | Construction platform: docs, model coordination, reviews | Focused document review and comment resolution |
| Ecosystem | Tightly integrated with Revit / Autodesk | Tool-agnostic — any PDF or document |
| Time to value | Platform setup and onboarding | Upload a document and start today |
| Reviewer access | Paid seats / named users | Free Collaborator roles for invited reviewers |
| Cost structure | Autodesk platform subscription | From €21.90/month · free trial |
| Best for | Model-centric, Autodesk-based projects | The daily review loop on any document |
Best Alongside Your Model Tools
If your coordination lives in ACC, keep it there — Contrat.io isn't a model-coordination tool. What it does better is the document review loop: faster to run, open to every reviewer for free, and independent of the authoring platform. Many teams use ACC for models and Contrat.io for comment resolution.
Frequently Asked Questions
Try It on One Review Cycle
Run your next review cycle in Contrat.io and compare it to your current process — most teams know within one cycle. Start your free 30-day trial, no credit card required, or contact us for a walkthrough against your review procedure.