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What it is

COTA is a cloud-based BIM platform from Mexico, built for architecture firms. It aims to bring BIM models, budgeting, discipline-based collaboration, project phases, and client portals into one workspace. Rather than being a general-purpose project management tool, it is positioned as a vertical SaaS product focused on architectural design and delivery workflows.

Core features and collaboration

At the center of the platform is a browser-based BIM 3D viewer that can open Revit, IFC, and other models without installation or plugins. It also supports model property extraction, automated quantity takeoff, budget generation, comments anchored to the model, and file version history. For collaboration, COTA lets teams organize projects by disciplines such as architecture, structure, and MEP, assign owners, and track phases, dates, and real-time progress. The client portal is a highlight: clients can view 3D models and phase progress in read-only mode via secure links, without needing to register an account. This is useful for reducing the cost of communication across emails, meetings, and version updates.

Pricing and trial

COTA currently offers a free Gratuito plan at $0/month, including 1 active project, 2 users, 250MB of storage, the full BIM viewer, and the client portal. It is also marked as requiring no credit card and having no time limit. The Pro plan is listed as coming soon, with planned support for 50 active projects, 50 users, 10GB of storage, priority support, and advanced reports, but pricing has not yet been disclosed. As a result, the long-term cost for mid-sized and larger teams remains difficult to assess.

Pros and cons

The main advantages are its low barrier to entry, cloud access, zero installation, and feature set designed around the frequent workflows of architects. The read-only client portal is also well suited to design presentations and delivery communication. The downside is that the product information still feels early-stage: third-party integrations, API access, developer support, payment methods, SLA, security certifications, and compliance framework have not been disclosed. The free plan has limited storage, the Pro plan is not officially available yet, and procurement certainty for enterprises is limited.

Who it is for and access from China

COTA is suitable for small or growing architecture firms, design teams that need to quickly share BIM models with clients, and teams that want to extract quantities from models while tracking project phases. Access from China is unclear. The official website does not mention China-based nodes, a Chinese interface, RMB payments, or local support. For deployment in China, teams should also evaluate alternatives such as Autodesk Construction Cloud, BIM 360, Trimble Connect, Graphisoft BIMcloud, and local BIM collaboration solutions such as Glodon.