Autodesk Forma Build vs Bonsai

Autodesk Forma Build is paid construction project software connecting office, trailer, and jobsite teams. It manages documents, costs, quality, safety, collaboration, and workflows including RFIs, submittals, meetings, issues, forms, and schedules. Web, iOS, and Android access are listed, and the Autodesk Forma mobile app can provide project data offline. Forma Build Essentials includes punch lists, issue management, daily reports, forms, current sheets and files, and mobile field access. Autodesk describes Build features including Autodesk Assistant, Construction IQ, photo autotags, automatic sheet extraction, and AI-assisted specification and submittal workflows. Integrations include Forma Design Collaboration, Forma Data Management, TradeTapp, accounting connections, and Forma Construction Connect, which supports custom connections to more than 200 systems. Autodesk also lists an AECO partner ecosystem with more than 400 integrations. A free trial lasts 30 days; users who do not subscribe afterward lose project access. Plans include Forma Build Essentials at $100 per user monthly and Forma Build - per user at $175 per user monthly.

Bonsai is a free, open-source family of applications for creating, reviewing, and sharing IFC models. Bonsai Studio is an IFC authoring platform built on Blender. It supports modeling, documentation, coordination, and BIM data management across disciplines. Studio can generate and annotate linked 2D drawings, then produce schedules and reports from model data. Bonsai Viewer is a separate free desktop application for reviewing IFC models, drawings, and data without the authoring environment. Viewer includes model search and filtering, clash detection, BCF issue management, federation of multiple models, and cloud synchronization for models and issues. Bonsai reads and writes native IFC and states that it has no proprietary formats or lock-in. Studio is powered by IfcOpenShell and includes Python scripting and an API. Listed workflows cover structural-analysis solver connections, MEP systems, 4D scheduling, 5D cost estimation, and COBie facility-management data. Studio and Viewer support Windows, macOS, and Linux. The Studio page labels the software alpha.