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Facts: desk research, not tested · Reviews: members' opinions

TestFit vs SitesAI Estimate

Two tools that put early cut and fill numbers in front of a team, at different stages. TestFit is a real estate feasibility platform that starts from an editable AI-generated site plan and generates parking, infrastructure and earthwork takeoffs while the deal is being tested. SitesAI Estimate is a browser-based earthworks takeoff tool for civil and earthmoving contractors that turns PDF, DWG or DXF plans into cut and fill quantities for pricing. Not like-for-like. Desk research from vendor pages read Oct 29, 2026; not tested, no winner.

DESK RESEARCH, NOT TESTED. Compiled from vendors' public websites (accessed Oct 29, 2026). Vendor claims are not verified by Means & Methods Lab. No scores or rankings.

In short: TestFit (Site feasibility & generative design; vendor publishes prices) vs SitesAI Estimate (Earthwork takeoff; vendor publishes prices). Facts last checked Oct 29, 2026. No winner declared; not tested.

Side by side

TestFit vs SitesAI Estimate: vendor-published facts side by side
Sheet rowTestFitSitesAI Estimate
CategorySite feasibility & generative designEarthwork takeoff
AI role (our label)AI features added to established productAI features added to established product
What it doesReal estate feasibility platform built on what the vendor calls an editable AI-generated site plan, with massing, a pro forma and takeoffs. Features listed: parcel mapping, road layout, turning radii, topography, parking automation, 2D/3D massing, a pro forma synced to the layout, and automatic takeoffs for parking, infrastructure, and earthwork (including cut and fill). Generative design and an MCP connection are on Site Solver. Exports to Revit, AutoCAD, SketchUp, Excel, and PDF. Vendor cites 6,200+ users (vendor claim). Re-read Oct 17, 2026: homepage unchanged in substance. The product menu lists Site Solver and Parking Solver, with Site Intelligence (site, environmental and zoning data), Pro Forma and an MCP Connection ("prompt your site plans with an AI assistant") as add-ons, and features a TestFit 5.26 release. The pricing FAQ says generative design is only on Site Solver, Revit and SketchUp integration is on all plans, and some data layers (such as parcel, flood zone, wetland or zoning data) may not be available in all countries. Re-checked Oct 19, 2026: the Data Center typology page describes generative design bounded by a minimum and maximum megawatt limit, custom parameters such as target power density, design PUE and front and back yard depths, regional power plant data, multi-level infill data centers with data halls, electrical rooms and mechanical yards, and phased campus layouts with major roads and substation layouts; the pricing table lists Data Center among building typologies. Re-checked Oct 20, 2026: homepage and pricing FAQ unchanged in substance (editable AI-generated site plan; 6,200+ users, vendor claim; generative design only on Site Solver; Revit and SketchUp on all plans; English-only support during U.S. business hours). The pricing page now also shows ROI figures from a 2026 customer survey (650+ deals evaluated per week, 5x faster site planning, $4,000+ saved per feasibility); these are vendor claims and are not used here. Re-checked Oct 22, 2026: homepage and pricing FAQ unchanged in substance (editable AI-generated site plan; MCP Connection to prompt site plans with an AI assistant; Site Solver subscribers get a dedicated account manager; English-only support during U.S. business hours). Customer quotes and ROI figures not used. Re-checked Oct 23, 2026: pricing FAQ unchanged in substance (generative design only on Site Solver; Revit and SketchUp on all plans; Site Solver subscribers get a dedicated account manager; English-only support during U.S. business hours, 9:00 AM-5:00 PM CST). Customer quotes and survey figures not used. Re-checked Oct 24, 2026: homepage and pricing page unchanged in substance (AI-generated site plan you can edit down to the parking stall; parking, infrastructure and earthwork takeoffs; push to Revit and export to AutoCAD, SketchUp, Excel or PDF; MCP Connection to prompt site plans with an AI assistant; TestFit 5.26 featured in the menu). Customer quotes and model-count figures not used. Re-checked Oct 25, 2026: homepage and pricing page unchanged in substance (AI-generated site plan you can edit down to the last parking stall; road layout, turning radius and topography; parking, infrastructure and earthwork takeoffs; MCP Connection; TestFit 5.26 featured in the menu). Customer quotes and speed multipliers not used. Re-checked Oct 26, 2026: homepage and pricing page unchanged in substance (AI-generated site plan you can edit down to the last parking stall; road layout, turning radius and topography; parking, infrastructure and earthwork takeoffs; Revit push and AutoCAD, SketchUp, Excel and PDF export; MCP Connection; TestFit 5.26 featured in the menu). Customer quotes and speed multipliers not used. Re-checked Oct 29, 2026: homepage and pricing page unchanged in substance (TestFit 5.26 featured in the menu; MCP Connection add-on). Customer quotes, survey figures and speed multipliers not used.Browser-based earthworks takeoff and estimating that calculates cut and fill from PDF, DWG or DXF plans, with an AI auto-takeoff plan. You load a PDF, DWG or DXF, calibrate scale, trace work areas and set existing/design levels; it calculates cut and fill, shows 3D terrain for levels and batters, and exports quantities to Excel or PDF. The AI plan adds AI auto-takeoff (draft for human review) and an MCP connector so Claude, Codex or ChatGPT can drive the same tools. Runs at takeoff.sitesai.net with Google or Microsoft sign-in. Re-checked Oct 19, 2026: the estimate page still lists Free (markup and 3D terrain on one sheet, no cut/fill volumes), Pro and AI plans, and states a 30-day money-back guarantee on paid plans and a 14-day free trial of the AI plan with no card (one per account). Re-checked Oct 21, 2026: the estimate page is unchanged in substance and adds that AI auto-takeoff proposes geometry for review and is metered as credits, with credits included each month on the AI plan, and that the MCP connector has 22 tools and is listed in the official MCP Registry as net.sitesai/estimate (vendor statements). Re-checked Oct 22, 2026: the estimate page is unchanged in substance (PDF, DWG and DXF cut and fill takeoff with 3D terrain; AI auto-takeoff proposes geometry for review and is metered as credits included monthly on the AI plan; MCP connector with 22 tools listed in the official MCP Registry). Re-checked Oct 23, 2026: the estimate page is unchanged in substance (PDF, DWG and DXF cut and fill takeoff with 3D terrain; existing surface from spot levels, contours or a survey DXF against design platform levels and batters, with bulking and compaction added by the user; AI auto-takeoff proposes geometry for review and is metered as credits; MCP connector with 22 tools). Re-checked Oct 24, 2026: the estimate page is unchanged in substance (PDF, DWG and DXF cut and fill takeoff with 3D terrain; existing surface from spot levels, contours or a survey DXF against design platform levels and batters, with bulking and compaction added by the user; AI auto-takeoff drafts geometry for review; MCP connector with 22 tools listed in the official MCP Registry as net.sitesai/estimate). Re-checked Oct 25, 2026: unchanged in substance (PDF, DWG and DXF takeoff with a 3D view; auto-takeoff and an MCP connector on the AI plan). The same pricing page also lists the separate SitesAI App (first 10 licences free, then $5 per licence a month, AI add-on $38 a month). Re-checked Oct 26, 2026: the estimate page is unchanged in substance (AI auto-takeoff proposes boundaries, areas and counts as a first pass and nothing is applied until you accept it; runs are metered as credits with credits included each month; MCP connector for Claude, Codex and ChatGPT on the AI plan). Re-checked Oct 29, 2026: the estimate page is unchanged in substance (PDF, DWG and DXF plans; cut and fill from traced boundaries and set levels, with a 3D terrain check; AI auto-takeoff proposes boundaries, areas and counts and nothing is applied until you accept it; MCP connector for Claude, Codex and ChatGPT on the AI plan).
Who it's forDevelopers, architects, contractors, and civil engineers on the deal team.Civil and earthmoving contractors pricing cut and fill from plans.
Pricing (as publicly stated)Parking Solver $195/month billed monthly (unlimited users), with optional add-ons: Site Intelligence +$150/mo (zoning and environmental data, 3D terrain with cut and fill analysis, power and utilities infrastructure), Pro Forma +$170/mo and MCP Connection +$100/mo. Site Solver from $15,000/year billed annually (includes Parking Solver plus generative design, MCP Connection, Site Intelligence, custom unit types, high-detail building presets and a dedicated onboarding and account manager; Pro Forma optional). Site Solver Portfolio from $20,000/year (adds volume pricing, enterprise SSO and quarterly business reviews). (Re-checked Oct 17, 2026; unchanged Oct 19, 2026. Earlier check Oct 14, 2026: same plan prices; the Pro Forma add-on was the only add-on price we recorded.) Re-checked Oct 20, 2026: unchanged (Parking Solver $195/month billed monthly with Site Intelligence +$150, Pro Forma +$170 and MCP Connection +$100 add-ons; Site Solver from $15,000/year; Site Solver Portfolio from $20,000/year). Re-checked Oct 22, 2026: unchanged (Parking Solver $195/month billed monthly with Site Intelligence +$150, Pro Forma +$170 and MCP Connection +$100 add-ons; Site Solver from $15,000/year; Site Solver Portfolio from $20,000/year). Re-checked Oct 23, 2026: unchanged (Parking Solver $195/month billed monthly with Pro Forma +$170/mo among add-ons; Site Solver from $15,000/year billed annually; Site Solver Portfolio from $20,000/year). Re-checked Oct 24, 2026: unchanged (Parking Solver $195/month billed monthly with Site Intelligence +$150/mo, Pro Forma +$170/mo and MCP Connection +$100/mo add-ons; Site Solver from $15,000/year billed annually; Site Solver Portfolio from $20,000/year). Re-checked Oct 25, 2026: no price change (Parking Solver $195/month billed monthly with unlimited users and Site Intelligence +$150/mo, Pro Forma +$170/mo and MCP Connection +$100/mo add-ons; Site Solver from $15,000/year billed annually; Site Solver Portfolio from $20,000/year). Re-checked Oct 26, 2026: no price change (Parking Solver $195/month billed monthly with unlimited users and Site Intelligence +$150/mo, Pro Forma +$170/mo and MCP Connection +$100/mo add-ons; Site Solver from $15,000/year billed annually; Site Solver Portfolio from $20,000/year). Re-checked Oct 27, 2026: no price change (Parking Solver $195/month billed monthly with unlimited users and Site Intelligence +$150/mo, Pro Forma +$170/mo and MCP Connection +$100/mo add-ons; Site Solver from $15,000/year billed annually; Site Solver Portfolio from $20,000/year). Re-checked Oct 28, 2026: no price change (Parking Solver $195/month billed monthly with unlimited users and Site Intelligence +$150/mo, Pro Forma +$170/mo and MCP Connection +$100/mo add-ons; Site Solver from $15,000/year billed annually; Site Solver Portfolio from $20,000/year). Re-checked Oct 29, 2026: no price change (Parking Solver $195/month billed monthly with unlimited users and Site Intelligence +$150/mo, Pro Forma +$170/mo and MCP Connection +$100/mo add-ons; Site Solver from $15,000/year billed annually; Site Solver Portfolio from $20,000/year).Free: markup and 3D terrain on one sheet (no cut/fill volume figures). Pro: $39/user/month or $390/year (volumes, unlimited sheets, Excel/PDF export, cloud sync). AI: $99/user/month or $990/year (adds AI auto-takeoff and MCP connector; 14-day free trial of AI plan, no card, one per account). USD. (Checked Oct 15, 2026; unchanged Oct 19, 2026: Free US$0, Pro US$39/user/month or US$390/year, AI US$99/user/month or US$990/year.) Re-checked Oct 21, 2026: unchanged (Free US$0 on one sheet without volume figures; Pro US$39 per user per month or US$390 per year; AI US$99 per user per month or US$990 per year with a 14-day trial, no card; 30-day money-back guarantee on paid plans). Re-checked Oct 22, 2026: unchanged (Free US$0 on one sheet without volume figures; Pro US$39 per user per month or US$390 per year; AI US$99 per user per month or US$990 per year with a 14-day trial, no card, one per account; 30-day money-back guarantee on paid plans). Re-checked Oct 23, 2026: unchanged (Free US$0 on one sheet without volume figures; Pro US$39 per user per month or US$390 per year; AI US$99 per user per month or US$990 per year with a 14-day trial, no card, one per account; 30-day money-back guarantee on paid plans). Re-checked Oct 24, 2026: unchanged (Free US$0 on one sheet without volume figures; Pro US$39 per user per month or US$390 per year; AI US$99 per user per month or US$990 per year with a 14-day trial, no card, one per account; 30-day money-back guarantee on paid plans). Re-checked Oct 25, 2026: no price change (Free for markup and the 3D view; Pro US$39 per user a month or $390 a year; AI US$99 per user a month or $990 a year with a 14-day trial and no card; 30-day money-back guarantee). Re-checked Oct 26, 2026: unchanged (Free US$0; Pro US$39 per user per month or US$390 per year; AI US$99 per user per month or US$990 per year with a 14-day trial, no card; 30-day money-back guarantee on paid plans). Re-checked Oct 27, 2026: no price change (Free US$0; Pro US$39 per user per month or US$390 per year; AI US$99 per user per month or US$990 per year with a free 14-day trial, no card, one per account; 30-day money-back guarantee on paid plans). Re-checked Oct 28, 2026: no price change (Free US$0; Pro US$39 per user per month or US$390 per year; AI US$99 per user per month or US$990 per year with a free 14-day trial, no card, one per account; 30-day money-back guarantee on paid plans). Re-checked Oct 29, 2026: no price change (Free US$0; Pro US$39 per user per month or US$390 per year; AI US$99 per user per month or US$990 per year with a free 14-day trial, no card, one per account; 30-day money-back guarantee on paid plans).
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Facts last checked: Oct 29, 2026. Prices change; check the vendor page before relying on them.

Where the vendor descriptions differ

  • Who each names: TestFit says it is built for the deal team (developers, architects, contractors, civil engineers and planners). SitesAI Estimate names civil and earthmoving contractors pricing cut and fill from plans.
  • Where the earthwork number comes from: TestFit generates earthwork takeoffs, including cut and fill, from its own site plan with road layout, turning radii and topography, so the quantity follows the layout you are testing. SitesAI Estimate compares an existing surface (spot levels, contours or a survey DXF) with the design platform levels and batters you set on the issued plan, and says bulking and compaction are added by the user as priced lines.
  • Where the AI sits: TestFit's AI is the generated site plan you edit, with generative design on Site Solver and an MCP Connection add-on to prompt site plans with an AI assistant. SitesAI Estimate's AI plan adds auto-takeoff that proposes boundaries, areas and counts for review (nothing is applied until you accept it) and an MCP connector for Claude, Codex and ChatGPT.
  • Outputs: TestFit pushes layouts to Revit and exports to AutoCAD, SketchUp, Excel and PDF, with a pro forma add-on linked to the plan. SitesAI Estimate shows the job as 3D terrain and exports quantities to Excel or PDF.
  • Pricing (checked Oct 29, 2026): TestFit Parking Solver $195/month billed monthly with unlimited users and add-ons (Site Intelligence +$150/mo, Pro Forma +$170/mo, MCP Connection +$100/mo); Site Solver from $15,000/year and Site Solver Portfolio from $20,000/year, billed annually. SitesAI Estimate Free US$0 (no volume figures), Pro US$39 per user per month or US$390 per year, AI US$99 per user per month or US$990 per year with a 14-day trial. See each tool page for detail.
  • AI tags: we tag both as AI features added to an established product.
  • Not used here: TestFit's customer quotes, survey ROI figures and speed multipliers (vendor material). Neither tool has been tested by Means & Methods Lab.

Paraphrased from the sources listed above. Vendor claims are reported as claims.

What users say

The facts above come from vendor websites. Whether either tool is any good for your work is something only people who use them can say. These are member reviews, all ratings shown, never edited or removed for being negative.

Used either of these? Share your take

Good or bad, an honest review from an estimator, PM or super helps the next team more than another vendor demo. You post under a handle; your email is never shown.

Questions to ask in your review

  • Whether you need a feasibility-stage earthwork read on a layout you are still testing (TestFit) or a priced cut and fill takeoff from issued plans (SitesAI Estimate)
  • How close either tool's early quantities land to a surveyed bid takeoff on heavy civil sites
  • What each costs for your team size and deal or bid volume
  • What did you use it for, on what kind of work and project size?
  • How long did setup and training take, and who on your team did it?
  • What does it cost you in practice, compared with what the sales call said?

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