Stratosphere
Stratosphere is a cloud-based construction takeoff software that gives estimators unmatched freedom and flexibility to complete takeoffs from wherever they want, however they want. If you want a single piece of software that can save you hours and hours of time on every job, gives you access to your plans and projects from anywhere, and doesn't force you to change the way you estimate, then Stratosphere is the perfect fit for you. Stratosphere can be used as a standalone program from your web browser, with Microsoft Excel via our custom Excel add-in that gives you measuring tools right in your Excel toolbar, or with one of our estimating partners to integrate your takeoff and estimating tools seamlessly. We offer flexible monthly and annual plans with discounts for larger teams, and best of all, Stratosphere is completely free to try!
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Purple Hammer
Purple Hammer is desktop takeoff and estimating software for construction estimators and QS teams. What Bluebeam should have become. Key features include:
- 120 FPS PDF viewer
- Markups & measurements (length, area, count, perimeter, volume, wall volume)
- Drawing comparison (auto align, blink, multi-candidate)
- Built-in estimating worksheets
- Takeoff formulas (power syntax)
- Cost & contract lookup tables
- Open MCP (AI access)
- Magic (1 click) Measure
- Snap to geometry, grid & raster edges
- Live document & version control
- Export: marked-up PDF, Excel, comparison GIF
- Mac & Windows
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Zip Takeoff
Zip Takeoff is a browser-based takeoff tool for sitework and heavy civil contractors who need accurate quantities without the cost of legacy desktop software. Upload plan PDFs and measure areas, lengths, and counts with vertex-level editing; automatic area pickup extracts vector geometry from supported PDFs for fast editable measurements, and scaled satellite imagery covers sites where plans aren't available. Group every measurement by pay item, turn areas into volumes and material weights with depth and density inputs, keep Base Bid and Alternates separate, and export pay-item totals to Excel with a marked-up plan set. Nothing to install — runs on Mac and Windows in the browser. Free plan: 10 projects, 5 GB storage, 1 estimator seat, full measurement tools and XLSX export. Pro: $39/mo per estimator seat; viewer seats free.
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PreConstruct AI
PreConstruct AI is a web-based construction takeoff and estimating application for subcontractors bidding interior finishes, concrete, and wood framing work from PDF drawing sets. It reads drawing scales and uses plan notes, schedules, and partition legends to help identify and measure walls, ceilings, and concrete quantities. AI-assisted wall suggestions are in beta and are reviewed, approved, or adjusted by the estimator. Approved quantities become material lists for items such as studs, board, insulation, tape, compound, paint, concrete, and rebar, with calculations and drawing-sheet references. Estimators can apply their own material prices, create proposal PDFs, and export data to Excel or CSV. Projects can use imperial units, metric units, or both. The application supports estimating workflows; estimators review measurements and quantities before submitting a bid.
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