On-Screen Takeoff, by ConstructConnect, has been the standard Windows desktop tool for manually digitizing plans for over two decades. BuildVision AI is a cloud platform where AI reads your plans and measures them automatically. In 2026, the real comparison is desktop manual workflow vs cloud AI automation.
AI
Auto measurements
Minutes
From upload to first takeoff
Cloud
Works on any device — including Mac
$1,000
What freelance estimators charge for a 30-page takeoff
On-Screen Takeoff (OST) is a desktop takeoff application from ConstructConnect, originally developed by On Center Software. Estimators load digital plans and digitize them on screen — clicking out area, linear, and count conditions, grouping them into assemblies, and organizing everything into bids. For estimators who came up doing takeoffs with a scale ruler and highlighters, OST was the tool that moved that work onto the screen, and it has been an industry standard for manual digitizing for more than two decades.
OST installs on Windows 10/11 only — there is no Mac version, no web version, and no mobile app. For full cost estimating, it pairs with Quick Bid, ConstructConnect's companion estimating product, which turns OST quantities into priced bids. More recently, ConstructConnect added Takeoff Boost, an AI-assisted measurement feature sold as a separate subscription on top of the OST license.
That history is exactly what sets up the comparison: On-Screen Takeoff made manual digitizing efficient. BuildVision AI removes the digitizing step itself — AI reads the plans and produces the measurements, so the estimator reviews and bids instead of clicking out every condition.
| Feature | BuildVision AI | On-Screen Takeoff |
|---|---|---|
| AI-Powered Automatic Takeoffs | Built-in — core product | Add-on — Takeoff Boost, separate subscription |
| Automatic Measurements | With Takeoff Boost add-on | |
| Manual Takeoff Tools | ||
| Assembly Takeoffs | ||
| Platform | Cloud — any browser | Windows desktop only |
| Mac Support | ||
| Mobile Access | ||
| Learning Curve | Start in minutes | Formal training recommended |
| Instant Proposals & Quotes | ||
| Material Lists | ||
| Getting Started | 14-day free trial | 14-day free trial |
| Pricing | From $299/mo | Quote-based via ConstructConnect |
BuildVision AI starts where On-Screen Takeoff stops: AI measurement is the core product, not an add-on.
ConstructConnect sells On-Screen Takeoff on a quote-only basis — there is no public price list, so the answer to “how much does On-Screen Takeoff cost” depends on a sales conversation. Third-party buyer guides report roughly $1,800 per user per year for subscriptions, and around $3,600 for the legacy one-time perpetual licenses that older quotes were built on.
Budget for the full stack, not just the license: the Quick Bid estimating companion is reported to add upwards of $2,400, and Takeoff Boost — the AI-assisted measurement feature — requires its own separate subscription on top of the OST license. A 14-day free trial is available if you want to evaluate it firsthand.
BuildVision AI's model is simpler to evaluate: token-based plans from $299/mo, with AI takeoff included in every plan rather than sold as an add-on. See the full pricing details for plan tiers and token allowances.
ConstructConnect doesn't publish On-Screen Takeoff pricing — you need a quote from sales. Third-party buyer guides report roughly $1,800 per user per year for subscriptions, with legacy one-time licenses around $3,600. The Quick Bid estimating companion and the Takeoff Boost AI add-on each cost extra. BuildVision AI publishes its pricing: token-based plans from $299/mo with AI takeoff included in every plan.
No. On-Screen Takeoff is a Windows desktop application — there is no Mac version, web version, or mobile app. Mac users typically resort to unsupported workarounds like Boot Camp or Parallels. BuildVision AI runs in the browser, so it works on Mac, Windows, and tablets without installing anything.
On-Screen Takeoff (OST) is desktop takeoff software from ConstructConnect (originally On Center Software). Estimators load plans and manually digitize them on screen — clicking out areas, lengths, and counts into conditions and assemblies — then typically pair it with Quick Bid for estimating. It has been an industry standard for manual on-screen takeoff for over two decades.
Yes, ConstructConnect offers a 14-day free trial of On-Screen Takeoff. BuildVision AI also offers a 14-day free trial, and because it's cloud-based you can upload plans and see AI-generated measurements within minutes of signing up.
Partially. ConstructConnect offers Takeoff Boost, an AI-assisted feature that can auto-measure areas, linears, and counts — but it's a separate paid subscription on top of the On-Screen Takeoff license, and the core product remains manual digitizing. With BuildVision AI, AI-powered takeoff is the core product on every plan, not an add-on.
If you want to move from manual digitizing to AI automation, BuildVision AI is built for exactly that: upload your plans and AI measures quantities, builds material lists, and drafts proposals automatically — all cloud-based, with no Windows install. For perspective on the value, freelance estimators charge around $1,000 for a single 30-page takeoff. You can compare the workflows yourself with the 14-day free trial.
Upload your plans and get accurate takeoffs in minutes — so your estimators spend their time bidding more work, not digitizing sheets.
14-day free trial • From $299/mo
