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Construction · head to head

Knowify vs STACK Construction Technologies

Knowify logo

Knowify

Construction

Construction and field service management integrated with QuickBooks

From
$99/month
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: Knowify additional users cost $29/month per person across all plans; STACK Construction Technologies takeoff and Estimate is priced per user at $249 per user per month, so cost scales linearly with estimators
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Knowify and STACK Construction Technologies differ
AttributeKnowifySTACK Construction Technologies
Starting price$99/monthFree
Free tierNoYes
PlatformsWebWeb, Ios, Android
FoundedUnknown2011

Identical on both: pricing model (subscription), 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 Knowify

Nothing recorded that STACK Construction Technologies does not also cover.

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.

Knowify

  • Bidding fixed-price and AIA jobs with team managementnot STACK Construction Technologies
  • Tracking labor and materials costs to project phasesnot STACK Construction Technologies
  • Real-time dispatching and payment processing for crewsnot STACK Construction Technologies
  • Managing change orders and invoicing across projectsnot STACK Construction Technologies

STACK Construction Technologies

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

Where each one falls short

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

Knowify

  • Additional users cost $29/month per person across all plans
  • Monthly billing costs 50% more than annual billing

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

Knowify

$99/month
  • Core$99/month
    • 1 user
    • Bid, execute, and invoice for fixed-price and AIA jobs
  • Advanced$329/month
    • 10 users
    • Project management
    • Job costing tools
  • Enterprise$null/mo
    • Unlimited users
    • Unlimited inventory
    • Custom pricing

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 Knowify if

Nothing in the data separates Knowify from STACK Construction Technologies on the points above - pick on price and on how each one feels to use.

Knowify 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 Knowify or STACK Construction Technologies better?
Neither clearly leads. Knowify starts at $99/month and STACK Construction Technologies at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Knowify or STACK Construction Technologies?
STACK Construction Technologies has a free tier; the other does not. Paid plans start at $99/month for Knowify and Free for STACK Construction Technologies.
Does Knowify or STACK Construction Technologies run on more platforms?
Knowify runs on Web. 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. Knowify starts at $99/month.
What is Knowify best used for?
Knowify is most often used for bidding fixed-price and aia jobs with team management, tracking labor and materials costs to project phases, real-time dispatching and payment processing for crews, managing change orders and invoicing across projects. Of those, bidding fixed-price and aia jobs with team management and tracking labor and materials costs to project phases are not what STACK Construction Technologies is typically brought in for.
What can Knowify do that STACK Construction Technologies cannot?
STACK Construction Technologies covers Digital takeoff, Estimating, Bid management, Proposal generation.

Answered from the vendors’ own pages

Knowify: How much does Knowify cost?

Knowify Core plan starts at $99/month for annual billing (or $149/month for monthly billing) and includes 1 user. The Advanced plan costs $329/month annually ($399/month monthly) and includes 10 users.

Source
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
Knowify: What is the cost per additional user on Knowify?

Additional users cost $29/month across all plans whether on Core or Advanced.

Source
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
Knowify: Does Knowify have a free trial?

A free trial is available for both Core and Advanced plans before requiring a paid subscription.

Source
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
Knowify: What add-on features are available on Knowify?

Service Pro ($99/month annually), Live Equipment Tracking ($25/vehicle/month annually), AI Dashcams ($25/dashcam annually), and Tool Tracking ($99/month) are available as paid add-ons.

Source
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
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