STACK runs construction workflows from takeoff to closeout.
Ruh adds AI employees across the wider business.
STACK supports the project workflow from takeoff and estimating through bidding, building, operating, and closeout. Ruh covers takeoff and estimating too, then deploys AI employees across accounts payable, marketing, and sales inside the tools your team already uses, with human approval before any number or message goes out.
Keep STACK where it fits. Add Ruh where the work expands.
Different categories, complementary work
STACK is a cloud-based construction platform built to help teams move from bid decision to project closeout, including takeoff, estimating, building, and operating. Ruh approaches AI as a workforce across twelve business functions. It supports drawing-based takeoff and estimating while also handling AP invoice intelligence, construction marketing, and sales outreach in your existing tools. Every number and message stays subject to human approval.
STACK and Ruh, capability by capability
The overlap is real in preconstruction. The distinction appears across the wider business, where Ruh adds AI employees beyond the project workflow.
| Capability | STACK | Ruh AI |
|---|---|---|
| Takeoff from drawings | Yes Measures volumes, areas, and quantities | Yes AI takeoff from drawings |
| Construction estimating | Yes | Yes |
| Bid-to-closeout project workflow | Yes | Partial Covers takeoff and estimating |
| Build and operate workflows | Yes | No |
| AP invoice intelligence and coding | No Not advertised in the reviewed positioning | Yes |
| Construction marketing | No Not advertised in the reviewed positioning | Yes |
| Sales and SDR outreach | No Not advertised in the reviewed positioning | Yes |
Twelve functions, one workforce.
STACK connects construction teams across takeoff, estimating, bidding, building, operating, and closeout. Ruh deploys AI employees across the work that surrounds it, sharing one knowledge base and one audit trail.
Ruh AI vs STACK, answered.
Is Ruh AI a replacement for STACK?
Not necessarily. STACK runs a broad construction project workflow from takeoff and estimating through bidding, building, operating, and closeout. Ruh covers takeoff and estimating, then extends AI employees into business functions outside that workflow, including accounts payable, marketing, and sales outreach. A team can keep STACK for the work it does well and use Ruh for the surrounding functions.
Does STACK go beyond construction takeoff?
Yes. STACK is not limited to takeoff. Its cloud-based platform spans the work from bid decision to project closeout, and its offerings include takeoff and estimating, build and operate workflows, and the full platform. Its takeoff product measures volumes, areas, and quantities, while the broader platform supports the construction workflow through final build.
Can a construction team use STACK and Ruh together?
Yes, because they address different categories of work. STACK can remain the platform for takeoff, estimating, bidding, building, operating, and closeout. Ruh can deploy AI employees across the business functions around that workflow, using the tools the team already has. Ruh runs inside the customer's own tenant and keeps a human approval step before any number or message goes out.
Which platform supports construction estimating?
Both do. STACK explicitly offers takeoff and estimating as part of its cloud-based construction platform, with a workflow that continues through bidding, building, operating, and closeout. Ruh also covers AI takeoff and estimating from drawings. The main difference is that Ruh additionally deploys AI employees into accounts payable and invoice coding, construction marketing, and sales outreach.
How does Ruh keep people in control?
Ruh keeps a human in the approval loop. Its AI employees never send a number or a message on their own, so the team reviews what goes out. They work inside the customer's own tenant and the tools the team already uses. Across twelve functions, they also share one knowledge base and one audit trail, giving the organization a consistent record of the work.