# STACK Estimating vs Viewpoint Spectrum

**Leader by vioscaleAI score:** STACK Estimating

| Attribute | STACK Estimating | Viewpoint Spectrum |
|---|---|---|
| **vioscaleAI score** | 60.1 (68% (medium)) | 49.1 (44% (low)) |
| content.faq | `[{"answer":"Cloud-based platform for construction takeoff, estimating, and field operations. Provides automated measurement of drawings, bid pricing, and mobile field management for contractors, suppliers, and owners. It is indexed under Construction Management Software.","source":"https://www.stackct.com","question":"What is STACK Estimating?","confidence":0.6},{"answer":"STACK Estimating offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://www.stackct.com","question":"Is STACK Estimating free?","confidence":0.6},{"answer":"STACK Estimating supports the web, Windows, iOS and Android. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.stackct.com","question":"What platforms does STACK Estimating support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for STACK Estimating, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.stackct.com","question":"Can STACK Estimating be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 for STACK Estimating. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as STACK Estimating not holding them. Always confirm compliance directly before you rely on it.","source":"https://trust.stackct.com","question":"What security certifications does STACK Estimating have?","confidence":0.7}]` | `[{"answer":"Cloud-based platform enabling real-time data sharing, integrated workflows, and advanced analytics for construction and project management. Connects teams through centralized dashboards, document control, and AI-driven insights. It is indexed under Construction Job Costing.","source":"https://www.trimble.com/en/products/software/trimble-viewpoint/spectrum","question":"What is Viewpoint Spectrum?","confidence":0.6},{"answer":"Viewpoint Spectrum offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://www.trimble.com/en/products/software/trimble-viewpoint/spectrum","question":"Is Viewpoint Spectrum free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Viewpoint Spectrum. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://www.trimble.com/en/products/software/trimble-viewpoint/spectrum","question":"What platforms does Viewpoint Spectrum support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Viewpoint Spectrum, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.trimble.com/en/products/software/trimble-viewpoint/spectrum","question":"Can Viewpoint Spectrum be self-hosted?","confidence":0.6},{"answer":"We have confirmed 5 integrations for Viewpoint Spectrum, including Revit, Tekla Structures, Tekla PowerFab, Trimble ProjectSight and Trimble PowerFab. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.trimble.com/en/products/software/trimble-viewpoint/spectrum","question":"What does Viewpoint Spectrum integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Viewpoint Spectrum. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Viewpoint Spectrum not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.trimble.com/de/support/asset-lifecycle/trust-center","question":"What security certifications does Viewpoint Spectrum have?","confidence":0.7},{"answer":"Viewpoint Spectrum is available worldwide. The vendor is headquartered in the United States.","source":"https://www.trimble.com/en/products/software/trimble-viewpoint/spectrum","question":"Where is Viewpoint Spectrum available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A cloud-based software platform designed to help construction teams accelerate quantity takeoffs, develop cost estimates, and manage project documents using AI-powered measurement and analysis tools. | Cloud-based platform enabling real-time data sharing, integrated workflows, and advanced analytics for construction and project management. Connects teams through centralized dashboards, document control, and AI-driven insights. |
| features.capabilities | `{"accounting_erp":true,"mobile_support":"mobile","primary_module":"estimating","deployment_model":"cloud_saas_platform","document_control":true,"estimating_takeoff":true,"excel_direct_export_integration":true,"ai_auto_count_symbol_recognition":true,"collaborative_cloud_multi_user_viewing":true,"linear_area_and_volume_measurement_tools":true,"customizable_assemblies_and_material_grouping":true,"multi_page_plan_overlay_and_revision_comparison":true}` | `{"deployment_model":"cloud_web_app"}` |
| integrations.count | 1 | 8 |
| integrations.list | `[{"name":"QuickBooks Online"}]` | `[{"name":"Revit"},{"name":"Tekla Structures"},{"name":"Tekla PowerFab"},{"name":"Trimble ProjectSight","native":true},{"name":"Trimble Tekla Structures","native":true},{"name":"Trimble PowerFab","native":true},{"name":"Trimble SketchUp","native":true},{"name":"Trimble Tekla PowerFab","native":true},{"name":"Trimble Field Points","native":true},{"name":"Trimble Reality Capture Platform Service","native":true},{"name":"Autodesk Revit","native":true},{"name":"Trimble Marketplace","native":true,"category":"integration_platform"}]` |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"freeTier":true,"sourceUrl":"https://www.stackct.com","retrievedAt":"2026-08-03T11:57:18.047Z"}` | `{"type":"subscription","summary":"Subscription model; personal subscribers not eligible for API access","currency":"USD","freeTier":true,"sourceUrl":"https://www.trimble.com/en/products/software/trimble-viewpoint/spectrum","retrievedAt":"2026-09-07T08:32:07.005Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | low | low |
| pricing.transparent | no | no |
| reliability.sla_pct | 99.9 | - |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.gdpr | - | yes |
| security.pci | yes | - |
| security.soc2 | yes | - |
| security.trust_center | - | https://www.trimble.com/en/support/asset-lifecycle/trust-center |

## Capabilities (Construction Bid Management)

| Capability | STACK Estimating | Viewpoint Spectrum |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | Cloud saas platform | cloud_web_app |
| Digital plan room document distribution | - | - |
| Mass itb invitation to bid email blasting | - | - |
| Side by side bid leveling comparison | - | - |
| Subcontractor prequalification and compliance | - | - |
| Historical subcontractor performance scoring | - | - |
| Automated addenda and revision notifications | - | - |
| Public open project lead bulletin boards | - | - |
| Direct integration to construction ERP project management | - | - |
| Diversity and inclusion mwbe tracking | - | - |
| SOC2 type ii | - | - |
| ISO 27001 | - | - |
| Pricing model | - | - |

*Source: vioscaleAI. Generated 2026-10-16T19:17:11.540Z. "-" = undocumented, not absent.*