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Construction · head to head

Sitemark vs STACK Construction Technologies

Sitemark logo

Sitemark

Construction

Drone-based progress tracking, quality control and commissioning built specifically for solar farms

From
On request
Rated
-
Full reviewWebsite
STACK Construction Technologies logo

STACK Construction Technologies

Construction

Takeoff and estimating software for preconstruction

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only STACK Construction Technologies has a free tier, so it costs nothing to try first.
  • Each has a real cost: Sitemark it only does solar, so a mixed renewables portfolio still needs a second platform for wind, storage and substations, and the consolidation argument for buying it collapses.; STACK Construction Technologies takeoff and Estimate is priced per user at $249 per user per month, so cost scales linearly with estimators
  • They diverge on capability: Sitemark covers Construction progress tracking, STACK Construction Technologies covers Digital takeoff.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Sitemark and STACK Construction Technologies actually diverge.

Attributes where Sitemark and STACK Construction Technologies differ
AttributeSitemarkSTACK Construction Technologies
Starting priceOn requestFree
Pricing modelquotesubscription
Free tierNoYes
FoundedUnknown2011

Identical on both: platforms (Web, iOS, Android), user rating (Not yet rated), category (Construction).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Sitemark

  • Construction progress tracking
  • As-built versus design comparison
  • Thermographic inspection
  • Defect localisation
  • Commissioning workflows
  • Ticketing and work management
  • Portfolio dashboards
  • Drone and robotics ingestion

Only in STACK Construction Technologies

  • Digital takeoff
  • Estimating
  • Bid management
  • Proposal generation
  • Plan storage
  • QuickBooks
  • Sage
  • Procore

What people use each for

The jobs each tool is most often brought in to do.

Sitemark

  • An EPC contractor on a multi-hundred-megawatt ground-mount plant that must report weekly installed counts to a lender and cannot do it by walking the rowsnot STACK Construction Technologies
  • An asset owner accepting a plant at provisional acceptance who needs documented evidence that what was built matches the issued design before signingnot STACK Construction Technologies
  • An operations team running annual thermographic inspection across a portfolio, wanting defects mapped to module positions so a technician goes straight to the faultnot STACK Construction Technologies
  • A developer comparing defect and underperformance rates across contractors and module suppliers to inform the next procurement roundnot STACK Construction Technologies

STACK Construction Technologies

  • Construction project estimation and biddingnot Sitemark
  • Field operations and daily reportingnot Sitemark
  • Construction project managementnot Sitemark
  • Material and labor takeoffnot Sitemark

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Sitemark

  • It only does solar, so a mixed renewables portfolio still needs a second platform for wind, storage and substations, and the consolidation argument for buying it collapses.
  • Pricing is quoted on site count and unpublished variables, which penalises owners of many small distributed assets relative to one operator of a single large plant with the same total capacity.
  • You still need someone to fly the site, and Sitemark does not remove the drone operator cost, permits or airspace constraints; it monetises the data after the flight.
  • Automated progress counting depends on a clean, current design layout, and on projects where the layout changes weekly the comparison generates false deviations that erode trust in the numbers.
  • Thermographic defect detection needs the plant producing at sufficient irradiance, so inspection windows in northern latitudes are narrow and a missed window pushes findings into the next season.

STACK Construction Technologies

  • Takeoff and Estimate is priced per user at $249 per user per month, so cost scales linearly with estimators
  • The full platform combining takeoff, estimating and field management starts at $298 per user per month
  • Field and project management is sold as a separate Build and Operate product starting at $49 per user per month rather than bundled with takeoff
  • The Build and Operate product offers only a two-week free trial, with the free version limited to Takeoff and Estimate

Pricing, plan by plan

Sitemark

On request
  • Sitemark Construction$undefined/year
    • Priced on number of sites and other variables
    • Progress tracking across construction activities
    • As-built versus design quality control
  • Sitemark Operations$undefined/year
    • Thermographic inspection and defect detection
    • Ticketing and work management
    • Portfolio dashboards

STACK Construction Technologies

Free
  • Takeoff & Estimate$249/month
    • Quantity takeoff capabilities
    • Labor and material takeoff
    • Flexible estimates and proposals
  • Build & Operate$49/month
    • Responsive plan viewing and markup
    • Issues, punch lists, and daily reports
    • Customizable workflows
  • Full STACK Platform$298/month
    • Plan measurement and markup
    • Integrated estimating
    • Field and project management

Which should you pick?

Choose Sitemark if

  • You need construction progress tracking.
  • You work on Web, iOS, Android.
  • You also want as-built versus design comparison.
Sitemark review

Choose STACK Construction Technologies if

  • You need digital takeoff.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want estimating.
STACK Construction Technologies review

Questions people ask

Is Sitemark or STACK Construction Technologies better?
Neither clearly leads. Sitemark starts at On request and STACK Construction Technologies at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Sitemark or STACK Construction Technologies?
STACK Construction Technologies has a free tier; the other does not. Paid plans start at On request for Sitemark and Free for STACK Construction Technologies.
Does Sitemark or STACK Construction Technologies run on more platforms?
Sitemark runs on Web, iOS, Android. STACK Construction Technologies runs on Web, Ios, Android.
Can I use STACK Construction Technologies for free?
Yes. STACK Construction Technologies has a free tier, so you can try it without paying. Sitemark starts at On request.
What is Sitemark best used for?
Sitemark is most often used for an epc contractor on a multi-hundred-megawatt ground-mount plant that must report weekly installed counts to a lender and cannot do it by walking the rows, an asset owner accepting a plant at provisional acceptance who needs documented evidence that what was built matches the issued design before signing, an operations team running annual thermographic inspection across a portfolio, wanting defects mapped to module positions so a technician goes straight to the fault, a developer comparing defect and underperformance rates across contractors and module suppliers to inform the next procurement round. Of those, an epc contractor on a multi-hundred-megawatt ground-mount plant that must report weekly installed counts to a lender and cannot do it by walking the rows and an asset owner accepting a plant at provisional acceptance who needs documented evidence that what was built matches the issued design before signing are not what STACK Construction Technologies is typically brought in for.
What can Sitemark do that STACK Construction Technologies cannot?
Sitemark covers Construction progress tracking, As-built versus design comparison, Thermographic inspection, Defect localisation. STACK Construction Technologies covers Digital takeoff, Estimating, Bid management, Proposal generation.

Answered from the vendors’ own pages

Sitemark: Is Sitemark priced per megawatt?

No. Sitemark states pricing is based on number of sites and other variables. Ask explicitly how a portfolio of small sites is treated, because per-site pricing is unkind to distributed assets.

STACK Construction Technologies: How much does STACK Construction cost?

STACK costs $49 to $298 per user per month depending on the plan. Build & Operate starts at $49/user/month, Takeoff & Estimate at $249/user/month, and Full STACK Platform at $298/user/month. Pricing is quoted per-user and scales with team size.

Source
Sitemark: Do we have to use Sitemark drone pilots?

No. It accepts data from third-party drone operators, which lets you keep an existing flight contractor.

STACK Construction Technologies: Does STACK offer free options?

Yes, Takeoff & Estimate includes a free version, and Build & Operate includes a two-week free trial. Full STACK Platform offers a Build Your Price option for custom configurations.

Source
Sitemark: Does it cover anything other than solar?

No. It is built specifically around solar plant structures and defect types.

STACK Construction Technologies: Can I get custom pricing from STACK?

Yes, STACK offers a Build Your Price option for the Full STACK Platform and Takeoff & Estimate to accommodate specific business requirements. Custom pricing requires direct consultation with their sales team.

Source
Sitemark: Can we export our data?

Yes, orthomosaics, defect lists and reports export. Confirm the format and whether historical inspections remain accessible after a subscription lapses.

STACK Construction Technologies: How quickly can STACK be implemented?

STACK promises quick implementation measured in hours rather than weeks, though the exact timeframe depends on your configuration and team size.

Source
Sitemark: Where is the company based?

Leuven, Belgium, with customers across Europe, the Middle East, Asia and the Americas.

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