# Avetta vs STACK Estimating

**Leader by Vioscale score:** STACK Estimating

| Attribute | Avetta | STACK Estimating |
|---|---|---|
| **Vioscale score** | 45.7 (9% (low)) | 56 (71% (medium)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A cloud-based system that helps organizations verify contractor qualifications, monitor compliance status in real time, and automate safety processes. It enables businesses to assess supplier capability and maturity, reduce manual compliance work, and gain visibility into supply chain risks across geographically distributed operations. | 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. |
| features.capabilities | `{"deployment_model":"two_sided_network_marketplace","diversity_and_inclusion_mwbe_tracking":true,"historical_subcontractor_performance_scoring":true,"subcontractor_prequalification_and_compliance":true,"direct_integration_to_construction_erp_project_management":true}` | `{"accounting_erp":true,"mobile_support":"mobile","primary_module":"estimating","document_control":true,"estimating_takeoff":true}` |
| integrations.count | 4 | 1 |
| integrations.list | `[{"name":"Salesforce"},{"name":"Oracle"},{"name":"Workday"},{"name":"ServiceNow"}]` | `[{"name":"QuickBooks Online"}]` |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US","GB"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"ios":true,"web":true,"android":true}` | `{"ios":true,"web":true,"android":true,"windows":true}` |
| pricing | - | `{"freeTier":true,"sourceUrl":"https://www.stackct.com","retrievedAt":"2026-08-03T11:57:18.047Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | - | freemium |
| pricing.price_level | - | low |
| pricing.transparent | - | no |
| reliability.sla_pct | - | 99.9 |
| reliability.status_page | - | yes |
| security.disclosure_policy | - | yes |
| security.gdpr | yes | - |
| security.pci | - | yes |
| security.soc2 | - | yes |

## Capabilities (Construction Bid Management)

| Capability | Avetta | STACK Estimating |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | Two sided network marketplace | - |
| 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: Vioscale. Generated 2026-09-01T15:21:48.009Z. "-" = undocumented, not absent.*