# PipelineSuite vs STACK Estimating

**Leader by Vioscale score:** STACK Estimating

| Attribute | PipelineSuite | STACK Estimating |
|---|---|---|
| **Vioscale score** | 26.3 (19% (low)) | 56 (71% (medium)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A SaaS application that helps construction teams organize and expedite their bidding process, from distributing bid opportunities and gathering responses to comparing proposals and making contractor selections. Includes tools for subcontractor qualification and bid tabulation. | 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":"cloud_saas_platform","side_by_side_bid_leveling_comparison":true,"mass_itb_invitation_to_bid_email_blasting":true,"automated_addenda_and_revision_notifications":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 | 5 | 1 |
| integrations.list | `[{"name":"Procore"},{"name":"Autodesk BIM 360"},{"name":"Bid Express"},{"name":"Plans4Less"},{"name":"HCSS HeavyBid Preconstruction"}]` | `[{"name":"QuickBooks Online"}]` |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US","CA","AU"],"availabilityScope":"regional","availableCountries":["US","CA","AU"],"notAvailableCountries":[]}` | - |
| platform.support | `{"web":true}` | `{"ios":true,"web":true,"android":true,"windows":true}` |
| pricing | `{"summary":"14-day free trial available","freeTier":false,"sourceUrl":"https://preconsuite.com/post/plans4less-tm-and-pipelinesuite-r-collaboration","retrievedAt":"2026-08-22T22:32:21.625Z","freeTrialDays":14}` | `{"freeTier":true,"sourceUrl":"https://www.stackct.com","retrievedAt":"2026-08-03T11:57:18.047Z"}` |
| pricing.free_tier | no | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | unknown | low |
| pricing.transparent | no | no |
| reliability.sla_pct | - | 99.9 |
| reliability.status_page | - | yes |
| security.disclosure_policy | - | yes |
| security.pci | - | yes |
| security.soc2 | - | yes |

## Capabilities (Construction Bid Management)

| Capability | PipelineSuite | STACK Estimating |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | Cloud saas platform | - |
| 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 2026-09-01T16:29:14.780Z. "-" = undocumented, not absent.*