How is Bildstak different from a BIM viewer?

A BIM viewer displays geometry and model properties. Bildstak is a data intelligence layer: it reads the BIM model and joins it to schedule, cost, RFIs, BCF and documents — so clicking an element shows every linked record, and you can query across all sources in plain English.

A BIM viewer — Navisworks, BIMcollab, Autodesk Viewer — is purpose-built to navigate and inspect model geometry. It lets you see the model, run clash detection, and read element properties. What it does not do is tell you the cost exposure behind those clashes, the RFI status for an element, or the schedule float for the activity that installs it.

Bildstak is not a viewer. It is the data intelligence layer that sits alongside your BIM tools and uses the model as an index:

  • Element Inspector: click any element and see every BCF issue, RFI, COBie record, cost line and schedule activity linked to it — joined by the IFC GlobalID.
  • Plain-English queries: ask 'which open BCF issues on Levels 3–5 have an associated RFI and no cost assessment?' and get a cited answer in seconds.
  • Cross-source modules: Claims Builder, EVM, specification tracker, portfolio risk ranking — all reading BIM and non-BIM sources together.
  • Standards compliance: IDS validation, COBie handover scoring, BIM model queries — not just geometry but the data quality on top.

Bildstak connects to IFC, Speckle and Autodesk APS/Construction Cloud, reads the model once, and then makes everything linked to those elements queryable. Your BIM viewer stays for geometry; Bildstak handles the intelligence.

Updated 2026-06-19