BIMcollab is an issue management system for BIM in the cloud and bridges the gap between BIM applications by offering a broad set of add-ons for all popular BIM tools. Part of its powerful ecosystem is BIMcollab ZOOM, a free model viewer to find information flaws, communicate issues and verify solutions. Connecting BIM-teams via the BIMcollab cloud means dramatically reducing time spend on communication about issues and helping to improve model quality: less construction errors, lower costs.