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Calque
Version 1.1.0 · Mac, iPad, iPhone

Draw roughly.
Type exactly.

Calque draws precise floor plans of your house and tells every room its exact area, measured the way your notary or architect will ask for it. One document, on every Apple device.

Download on the App Store See the app

Free to download. Calque Pro is one purchase of $14.99, never a subscription.

0.1 mm grid Net · Habitable · Carrez iCloud Drive
14.30 Séjour 32.40 m² Cuisine 12.85 m² Garage 21.90 m² Bureau 9.70 m² WC 1.60 m² Entrée 6.20 m² x 4.210   y 2.865   ·   snap: endpoint   ·   1:100 RDC  84.65 m² net

The whole house, in one window.

These are the app's own windows, drawing the sample house it ships with. Nothing here is a mock-up.

Calque on the Mac: the ground floor of a house drawn to scale, with a kitchen, a living room and a garage with its stair, dimensioned on every side, the tool rail on the left and the level's inspector on the right.
Draw roughly. Type exactly. Sketch the walls, then give each one its real length. Doors, windows and stairs snap into place, and the dimensions follow every wall.
  • Walls, rooms, doors, stairs and dimensions, in one rail
  • Rooms are found between the walls, never drawn
  • The net area of the level, kept up to date
An old floor plan imported as an underlay in Calque, faded under the grid, with its page, opacity, scale and a Calibrate button in the inspector.
Start from the plan you already have. Import a scanned plan, a photo or a page of a PDF, set its scale from one length you know, and draw over it.
  • Import a scan, a photo or a PDF page
  • Fade it back to draw over it
  • Set the scale from one known length
Calque's Areas sheet under the surface habitable standard: the garage left out, the living room and kitchen with their areas and a subtotal, and upstairs a bedroom with 10 m² under 1.80 m taken off.
Every room, under every standard. Net floor area, surface habitable, Carrez and surface de plancher, per room, per level and for the whole house.
  • Pick the standard the paperwork asks for
  • A garage is floor area, but not habitable
The Export PDF sheet: a live preview of both levels on A3 landscape at 1:50, with a filled-in title block, next to paper, orientation, scale and which dimensions to print.
A PDF to scale, exactly as drawn. Choose the paper and the scale, and the title block fills itself in. The print comes out of the same renderer as the screen.
  • A live preview of every page
  • 1:50, 1:100, your own, or the largest that fits

An instrument, not a toy.

For the homeowner or renovator drawing their own house, and for the architect, kitchen fitter or notary who receives the PDF.

01

Every number is editable.

Lengths, angles, offsets and areas stay on screen as text. Click any of them to change it. Nothing is hidden behind a dialog.

02

The canvas is the app.

Translucent chrome that folds away while you draw. No modal windows in the middle of a tool, no web-app toolbar, just your plan.

03

Exact, not approximate.

Every point sits on a tenth of a millimetre, so two rooms share a corner exactly and their areas add up to the level's, to the last digit.

The area schedule

Rooms are never drawn. They are found.

You draw walls. Calque finds the rooms between them, offsets each edge by that wall's own thickness on that side, linings included, and measures the floor to the finished face. What is drawn and what is measured are the same geometry.

Net floor area
Inside the walls, room by room
Surface habitable
Loi Boutin. No garages, stairs or zones under 1.80 m
Surface Carrez
The same 1.80 m rule, per lot
Surface de plancher
For the planning file
Area schedule Maison · 1:100
Room Type Net Habitable Carrez
Séjour Living 32.40 32.40 32.40
Cuisine Kitchen 12.85 12.85 12.85
Bureau Office 9.70 9.70 9.70
Entrée Corridor 6.20 6.20 6.20
WC Bathroom 1.60 1.60 1.60
Garage Garage 21.90 Excluded: garages are not habitable area
Total 84.65 62.75 62.75
All figures in m². Export the schedule as CSV next to the plan.

Drawn the way a house is built.

The walls, openings and levels carry what they really are, so the areas that come out of them can be handed to someone who will check.

One plan, three ways to hold it.

Draw with the mouse, correct with the keyboard, verify with the phone. Every plan is one document in iCloud Drive, open on all three.

Mac· Mouse and keyboard

The drafting table.

Tool rail, inspector, status bar. Sketch a wall with the mouse, then type its length while the badge is still open.

iPad· Touch

Drag a wall out with a finger.

Pinch to zoom, drag to pan, then set any length, thickness or position to the millimetre from the inspector.

iPhone· On site

The plan in your pocket.

Stand in the room with the plan open, check its area, and correct a length where you measured it. The same document is waiting on the Mac.

Projet Maison · RDC
Échelle 1:100 · A4
Surface habitable 62.75 m²
Date 24.09.2026
Export

Hand it over exactly as drawn.

The canvas and the PDF come out of the same renderer, so the print cannot drift from the screen. Pick a paper size and a scale, and the title block fills itself in with the level, the scale and the area. PDF and CSV export are part of Calque Pro.

  • PDF
  • CSV
  • PNG (planned)
  • SVG (planned)
  • DXF (planned)
  • USDZ (planned)

Filled: in the app today. Outlined: planned.

Buy it once.

No subscription for your own house. Draw it for free, and buy Pro once when you need to hand the plan on: the PDF to scale, the CSV and the flooring quantities.

Calque Free Free download, no limit on levels or rooms
  • Walls, doors, windows, stairs
  • Rooms and areas, every standard
  • Trace over a scanned plan
  • Mac, iPad and iPhone, through iCloud
Calque Pro $14.99 One purchase, no subscription
  • PDF export to scale
  • The area schedule as CSV
  • Flooring quantities for a quote
  • What joins Pro later, included

Pro is shared with your family through Family Sharing. Sharing, room scanning, DXF and 3D will join it as they are built.

Before you draw the first wall.

Anything else, ask us.

Is Calque free?

Yes. The download is free, with no limit on levels or rooms, and every tool and area standard is in it. Calque Pro is one purchase of $14.99, with no subscription, for what you hand on: the PDF to scale, the area schedule as CSV, flooring quantities, and on the Mac the MCP server for AI agents.

Do I pay again on my other devices?

No. Calque is one app for Mac, iPad and iPhone, and Pro unlocks on every device signed in to the same Apple Account. It is shared with your family through Family Sharing too.

Which areas does it measure?

Net floor area, surface habitable (loi Boutin), surface Carrez and surface de plancher, per room, per level and for the whole house. Each room is measured to the finished face of its walls, linings included, and zones under 1.80 m are taken off where the standard says so.

Can I rely on the figures for a sale?

Calque applies each standard's rules to the plan you drew, so its figures are as exact as the lengths you typed. It is a tool for preparing and checking a measurement, not a certified survey: where a sale needs one, have it done by a professional.

I already have a plan on paper. Do I start from scratch?

No. Import a scan, a photo or a page of a PDF, set its scale from one length you know, and draw the walls over it.

Where are my plans kept?

Each plan is a document you can keep in iCloud Drive, so it opens on your Mac, iPad and iPhone. There is no account, and the app makes no network requests of its own: we never see your plans.

Which languages and devices?

English and French, in the app and in the printed PDF. It needs macOS 26, iPadOS 26 or iOS 26.

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Measure your house tonight.

Free on the App Store for Mac, iPad and iPhone. Calque Pro is $14.99, once, when you need the PDF.

Requires macOS 26, iPadOS 26 or iOS 26

Download on the App Store Tell us what your plans need