Download · r253 · updated 10 October 2026

Install it on your machine. Your documents never leave it.

The complete workspace — search, registers, the outbound check, the studios — installed on your own computer. Every install starts a 14-day full evaluation on your own documents; an activation code by e-mail continues it. Nothing here is uploaded anywhere, ever.

On Windows, the Microsoft Store is the simplest route and the one we would take: Microsoft signs and delivers the package, and it updates itself. The direct installer is there for the machines and the companies where the Microsoft Store is not an option.

Windows

Installed and updated by the Microsoft Store · Windows 10/11, 64-bit

The Microsoft Store is the easiest way in: Microsoft signs and delivers the package, so there is no security warning to click past, and updates arrive by themselves. It is the same product, with the same 14-day evaluation.

Or the direct installer · 1.7 GB · for a company that blocks the Microsoft Store, or an offline machine

Download the installer instead

Windows shows a SmartScreen notice for any installer it has not seen enough times yet, ours included — choose More info → Run anyway. The checksum below is there so you can confirm the file is exactly the one we published. The wizard checks your machine before installing and needs no internet during setup.

macOS

Installer package · 1.8 GB · Apple Silicon, macOS 13+

Download for Mac

A native installer wizard. On first launch, right-click the app and choose Open once — macOS asks this of any app it has not been told to trust yet. The checksum below confirms the file is exactly the one we published.

1 · Install Everything ships inside the installer — both search-quality models, readers, the drawing converter, OCR. No downloads mid-setup, which is why the file is large.

2 · First run A 15-second machine check, then your one-time setup code creates the admin account.

3 · Connect a folder Point it at the project folders you already keep — indexed in place, nothing copied.

4 · Licence it Type your activation code in Settings when the 14-day evaluation ends — until then the full product is yours to judge, with nothing to activate.

Verify your download

Two checksums, one command.

Every website installer is published with its SHA-256 checksum. Compare it with the file you downloaded — the two must match exactly. The Microsoft Store package carries Microsoft’s signature and needs no manual check. The same values are in SHA256SUMS.txt and checksums.json.

EngineeringWorkspace-Setup.exe · Windows634273f686bbbe3f7a50b374db7c0508148499e3f4958565446adc2a435acb10PowerShell: Get-FileHash .\EngineeringWorkspace-Setup.exe -Algorithm SHA256

EngineeringWorkspace.pkg · macOSac2877d70dffce49ec61a5c251e8b9e8b01c213b78ee26874349d1be4ec35e99Terminal: shasum -a 256 ~/Downloads/EngineeringWorkspace.pkg

Not sure your machine can carry it? See the system requirements — and the installer measures your computer honestly before placing a single file.

What changed · r248 → r253

Since the last website release.

A search that reads the questionSearch reads what you asked: the trade, the item as you wrote it, what you want to know, and the section of the specification that governs it, shown at the top of the results. Another trade’s results come after your own, copies of one file fold into one result that says where else it is kept, and each result says in words why it is there. Ask has its bar on top with the newest answer under it, searches your past conversations by what was said, and lists the references the answer cites. The page viewer reaches every page of a long binder, and a spreadsheet opens as its sheet with every column.

Before you send reads the draftThe check first reads what a draft is about: its trade, its items under every name the trade uses, what it asks for and what it cites. It finds the section that governs the item, names only the makers that section lists for that item, and says when a draft cites another trade’s section or leaves out the one that governs. The deep read runs on your own AI.

Registers, analytics and AI modelsShop drawing and submittal logs keep every row, drawings not yet submitted included, and the register pages through all of them. Every column can be grouped, counted and filtered, with new measures, conditions and 24 more Excel functions. When an AI provider retires a model, the workspace moves to the newest one your key may use, by itself; Settings has a Models panel to choose your own.

Smaller thingsEach line of the Mail brief opens the mail it came from; Follow-ups show the thread under each row. The Assistant names each conversation by its subject. Spelling in the right-click menu. Clarification responses: name the Engineer and the Contractor once, and a Contractor’s letter is never shown as a ruling. Half a screen folds the side bar. The evaluation counts once per computer, and Need more time? asks for seven more days.