What are the alternatives to STACK construction software for estimating?
STACK is a full cloud takeoff-to-field platform; if you only need the estimate produced from the plans, a lighter alternative may fit better, and if you need the integrations, STACK is the right tool.
The right alternative to STACK depends on which part you want to replace. For takeoff you operate, PlanSwift and Bluebeam Revu are the usual picks. For the estimate itself, Skoper is AI estimating, not AI takeoff: you upload the plans and get back a priced estimate, a scope of work and an Assumptions & Sources sheet in about three minutes.
What STACK does, and who it fits
STACK describes itself as an AI preconstruction platform (stackct.com, read 2026-10-08). Its site lists plan reading and auto-naming of pages, revision flags, AI auto-counting of symbols, worksheet-style estimating with items and assemblies, regional cost data, unlimited viewer seats, and field tools (RFIs, daily reports, photos) that carry the same scope into the build. If you need takeoff data flowing into Procore or accounting, or a team working in one shared cloud workspace, STACK is built for that.
Why contractors look past it
- They want the estimate, not another tool to operate seat by seat.
- Per-user pricing is hard to justify for part-time bidders, and STACK's AI auto-count is sold as a separate add-on (stackct.com, read 2026-10-08).
- They do not need the field-management half of the platform.
STACK and alternatives, side by side
| STACK | PlanSwift | Bluebeam Revu | Togal.AI | Skoper | |
|---|---|---|---|---|---|
| What it is | Cloud takeoff, estimating, proposals, field tools | Takeoff and estimating you operate | PDF markup and collaboration | AI quantity takeoff | AI estimating |
| Who does the takeoff | You, with AI counting and suggestions | You, with an AI-assisted first pass | You, with measuring tools | AI detects, you review | Skoper reads the sheets; you review |
| Priced estimate | Yes, from your catalog | Yes, from your assemblies | No, goes to Excel or another tool | No | Yes, from your price book or market rates |
| Scope of work document | Proposal documents | No | No | No | Yes, Word format |
| Assumptions & Sources | Your own notes | Your own notes | Your own notes | Quantities by classification | Yes, each takeoff row names its source |
| Integrations | Procore, QuickBooks, Sage Intacct, NetSuite, Autodesk and others | Excel export | Excel via Quantity Link | Excel, PDF export | Excel and Word files; no accounting or Procore integration |
| Pricing model | Per user per month | Per seat per year | Per user per year | Per user per month | Monthly plan by number of estimates, no per-user seats, 3 free estimates to start |
Competitor details are as published on each vendor's site on 2026-09-15 and recorded on Skoper's comparison pages: STACK, PlanSwift, Bluebeam and Togal.AI. Dollar figures are left out of the table on purpose; see each vendor's pricing page.
Where Skoper fits
Skoper is AI construction estimating for GCs, subcontractors and trades who bid commercial and public work from drawings and specs. It reads every sheet, including schedules and sections, prices each line from your price book or market rates, and returns an Excel workbook and a Word scope of work. Every price you change is saved to your price book. Plans are $149/month for 10 estimates or $349/month for 30; anyone on your team can use the account. A person reviews every estimate.
Test it on a job you already bid in STACK and compare line by line. Skoper does not replace STACK's integrations or field tools.
For the full side-by-side, see Skoper vs STACK.
Frequently asked questions
Is STACK AI?
Its site describes AI features across plan reading, auto-count and estimate checks. The takeoff is still user-driven.
What is the difference between AI takeoff and AI estimating?
AI takeoff returns quantities. AI estimating returns the priced estimate, scope of work and where each number came from.
Can Skoper send data to Procore or my accounting system?
No. It produces Excel and Word files. If integration is the requirement, STACK is the better fit.
Is there a free way to compare?
Every Skoper account starts with 3 free estimates on plan sets up to 150 pages, no credit card.
How accurate is it?
AI is good at takeoffs. Skoper captures about 90% of what is on the plans, pricing can swing about 10% either way, and a person still reviews every estimate. Hard-to-read plan sets cause most errors.
Run a job you already bid and compare it line by line.
Sources
- STACK homepage, read 2026-10-08: https://www.stackct.com/
- Skoper vs STACK (vendor data as of 2026-09-15): https://www.skoper.io/compare/stack
- Skoper vs PlanSwift, Bluebeam and Togal.AI comparison pages, same date: https://www.skoper.io/compare/planswift, https://www.skoper.io/compare/bluebeam, https://www.skoper.io/compare/togal
- Skoper pricing, read 2026-10-08: https://www.skoper.io/pricing