STACK pricing: what the vendor says, and what it leaves out.
STACK publishes three "as low as" numbers and a free version, and stops there. Everything else you read about STACK plan prices comes from someone else, and those sources do not agree. This page separates the two and shows the math you can actually rely on.
How much does STACK cost in 2026?
STACK's own pricing page says Takeoff & Estimate costs "as low as $299 per user / month", and that a free version of Takeoff & Estimate exists. STACK does not publish named plan prices or state the billing term on that page. Taken at face value, $299 per user per month is $3,588 per user per year, the same figure as a Togal.AI seat. Plan names and prices quoted elsewhere come from third parties and conflict with each other.
That last sentence is the important one. If a site tells you confidently that "STACK Pro is $X", it is repeating a directory, a reseller or a competitor's guide, not STACK.
| STACK at a glance | |
|---|---|
| What it is | Cloud on-screen takeoff with estimating and proposals, plus AI assist features |
| Who reads the drawings | The estimator. STACK Assist automates some counts and floor-plan measurements. |
| Platform | Browser |
| Pricing model | Per user; a free version exists |
| Public price | Takeoff & Estimate "as low as $299 per user / month" |
| Best for | Subcontractors and general contractors who want takeoff, estimate and proposal in one cloud seat |
Pricing reviewed 13 November 2026, based on public documentation as of Nov 2026. STACK, Togal.AI, PlanSwift and Kreo are trademarks of their owners; this is an independent comparison published by Pilars.
STACK products and published prices
| Product | What the vendor page says | What it is |
|---|---|---|
| Takeoff & Estimate, free version | Free | A no-cost version of the takeoff and estimating product; check the pricing page for its current limits |
| Takeoff & Estimate | "As low as $299 per user / month" | Preconstruction: takeoff, estimating, proposals |
| Build & Operate | "As low as $49 per user / month" | STACK's separate Build & Operate product |
| Full STACK Platform | "As low as $348 per user / month" | Both together ($299 + $49) |
| Floor Plan AI (part of STACK Assist) | Add-on; price from your account manager | Automated floor-plan measurement |
| STACK IQ | Included in all paid subscriptions | A connector that lets AI assistants such as Claude, ChatGPT and Copilot operate STACK |
Why STACK plan prices conflict across sources
Here is what third-party listings report for the same product, all in 2026:
- A ConstructConnect guide from August 2026 lists Premium at $249 per user per month and Pro at $299 per user per month, billed annually, with a Floor Plan AI add-on at $899 per user. ConstructConnect sells competing products.
- Capterra shows $2,599 per year.
- Software Advice shows a range of $599 to $2,599.
- GetApp shows $299 per month.
- Other buyer guides show $2,999 to $3,999 per year.
Those cannot all be right. The likely explanations are ordinary: tier names have changed over the years, some figures are annual and some monthly, and "as low as" pricing usually reflects a multi-seat or annual-commitment rate. We could not confirm any named tier price on STACK's own site, so none is stated here as fact. The only way to know your price is a quote, and it is worth asking the rep directly which commitment the $299 figure assumes.
STACK cost per user: one, three and five estimators
With no published tier table, the fairest worked example gives a range: the vendor's "as low as" rate held for twelve months, and the lowest annual figure a major directory reports. Treat both as estimates until you have a quote.
| Team | At the vendor's $299 per user per month | At the $2,599 per year third-party listings report |
|---|---|---|
| 1 estimator | $299 × 12 = $3,588 | $2,599 |
| 3 estimators | $299 × 12 × 3 = $10,764 | $2,599 × 3 = $7,797 |
| 5 estimators | $299 × 12 × 5 = $17,940 | $2,599 × 5 = $12,995 |
Then add the AI. Floor Plan AI is documented as an add-on to a STACK subscription with a price set through your account manager. If the $899 per user figure in the ConstructConnect guide is right, a three-seat team adding it would pay a further 3 × $899 = $2,697, but that number is third-party and unconfirmed. Get it itemised.
What a STACK subscription includes and what costs extra
Included
- Cloud takeoff, estimating and proposals in one product
- Browser access from Mac or Windows, nothing to install
- STACK IQ on every paid plan at no extra charge
- A free version to learn the tool before paying
Extra, limited or not public
- Floor Plan AI, a paid add-on with an unpublished price
- Symbol Counting AI, which STACK's help documentation says is currently available only on electrical plan sheets
- Build & Operate, priced separately from Takeoff & Estimate
- The billing term and any seat minimum behind the "as low as" rate
STACK Assist is documented as automating counts for doors, windows and symbols, interior and exterior wall takeoffs, and gross and room areas. That is useful help on architectural sheets. It is assistance inside a manual tool, though: the estimator still sets up and drives the takeoff.
STACK pricing vs Togal.AI, PlanSwift and Pilars
| STACK | Togal.AI | PlanSwift | Pilars | |
|---|---|---|---|---|
| Who reads the drawings | Estimator, with AI assist add-ons | Software first pass, estimator cleans up | Estimator, with AI count and first-pass tools | Software reads the set and spec book; estimator reviews and edits |
| Platform | Browser | Browser | Windows desktop | Browser |
| Public price | "As low as $299 per user / month"; free version | $299 per user per month billed yearly | $2,000 or $3,000 per seat per year | $300 per user per month ($3,600 per year); one trade per user, unlimited takeoffs |
| Estimating and proposals | Yes | No | Estimating with assemblies | No; takeoff summary and Excel export |
| Best for | One cloud seat from takeoff to proposal | AI area and space takeoff on architectural plans | Assembly-driven estimating on Windows | A full first-pass takeoff produced for the estimator to review and edit |
STACK and Togal land at the same headline number and are different purchases. Togal's $299 buys unlimited AI takeoffs and no estimating. STACK's buys manual takeoff with estimating and proposals, and puts the floor-plan AI behind an add-on. If you need a priced proposal out of the same tool, STACK is the better fit of the two. Togal vs STACK goes through it feature by feature.
STACK vs Pilars, seat for seat
Pilars is $300 per user per month. Each user covers one trade of their choice, with unlimited takeoffs.
| Team | STACK at $299 per user per month | STACK at the $2,599 per year third-party listings report | Pilars, per year |
|---|---|---|---|
| 1 user | $3,588 | $2,599 | $300 × 12 = $3,600 |
| 3 users | $10,764 | $7,797 | $900 × 12 = $10,800 |
| 5 users | $17,940 | $12,995 | $1,500 × 12 = $18,000 |
At the vendor's "as low as" rate the two are $12 a seat a year apart, which is nothing. If your quote matches the $2,599 that directories report, STACK is about $1,000 a seat cheaper. STACK's free version beats everyone on price for the occasional small job. A STACK seat also includes estimating and proposals and is not tied to a trade, where an estimator taking off two trades needs two Pilars users at $600 a month. Pilars can be billed monthly or annually.
The other half of the comparison is labour. Pilars reads the plan set and spec book in minutes across 19 trades, and nothing is locked: open any detection, reclassify it, add or remove a device, or adjust a quantity, and the totals update. On our one published test, a duplex receptacle count on a real power plan, Pilars scored 97.5% and STACK 72%. That is a single test of one device type, not an overall ranking.
Is STACK worth the price?
STACK is best for a subcontractor or general contractor who wants the whole preconstruction chain, from takeoff to estimate to proposal, in one browser tab, with several estimators sharing work. It is a mature product with a large review base, and the free version means you can judge the workflow before spending anything.
STACK is harder to justify for a buyer who wants AI takeoff specifically, since the floor-plan AI is an unpriced add-on, or for a shop with low bid volume that will not use a seat every week.
Pilars is best for trade contractors who want the quantities produced and then edit them, and who already have a way to price. It does not replace STACK's estimating and proposal tools, and at $300 per user per month it is not a cheaper seat. See Pilars vs STACK or run a set through the live demo.
Questions estimators actually ask
How much does STACK takeoff software cost?
STACK's pricing page says Takeoff & Estimate costs "as low as $299 per user / month" and that a free version exists, as reviewed on 13 November 2026. STACK does not publish named plan prices there, so the exact figure comes in a quote.
Is STACK takeoff software free?
STACK offers a free version of its Takeoff & Estimate product, alongside paid subscriptions that start "as low as $299 per user / month". Check STACK's pricing page for what the free version currently limits.
Why do different websites show different STACK prices?
STACK publishes only "as low as" figures, so directories fill the gap with numbers that conflict: third-party listings report $2,599 per year, $599 to $2,599, $299 per month and $2,999 to $3,999 per year. None of those named tier prices could be confirmed on STACK's own site in November 2026.
What is STACK cost per user per year?
STACK costs about $3,588 per user per year if the vendor's "as low as $299 per user / month" rate holds for twelve months. Third-party listings report annual figures from $2,599 upward, so ask STACK which billing term and seat count the $299 rate assumes.
Does STACK pricing include AI takeoff?
STACK paid subscriptions include the STACK IQ connector at no extra charge, but Floor Plan AI, part of STACK Assist, is an add-on priced through your account manager. STACK's help documentation also says Symbol Counting AI is currently available only on electrical plan sheets.
Which is cheaper for a three-estimator shop, STACK or Togal.AI?
STACK and Togal.AI both list $299 per user per month, so three seats come to about $10,764 per year on either, assuming STACK's "as low as" rate applies. STACK includes estimating and proposals but charges extra for Floor Plan AI, while Togal.AI includes unlimited AI takeoffs and no estimating.
Is STACK cheaper than Pilars?
STACK and Pilars cost about the same per seat at list price: STACK is "as low as $299 per user / month" and Pilars is $300 per user per month for one trade with unlimited takeoffs. STACK is cheaper if your quote matches the $2,599 per year that third-party listings report, and STACK also has a free version; the case for Pilars is that the software produces the first-pass takeoff for the estimator to review and edit.