Install and open
Drag Lectra into your Applications folder and open it. It is signed and notarized by Apple, so it installs cleanly and opens without a security scare.

Lectra for Mac · Free
The whole app runs here now — readings and markup, notebooks, Python, and a terminal. And when you want it, your iPad can open this Mac and work on it from anywhere.
Free · Signed and notarized by Apple · Nothing to buy, ever
If you came here for Receiver
There is no separate app to install anymore. Everything Receiver did — letting your iPad see and control this Mac, catching documents you send over, sharing a clipboard between them — is built into Lectra for Mac, and the rest of Lectra comes with it.
One app instead of two
Download Lectra for Mac and you can put the old app away. Setup is the same short run it always was: open it, sign in, allow access.
What it does
Open a reading and write straight on it — handwritten markup with your mouse or trackpad, typed text boxes, and images placed where you want them.
Folders, favorites, and search across everything you have imported. Notebooks sit next to readings instead of somewhere else.
Python, a shell, Git, a code editor, and notebooks you can actually run — all on this Mac, all offline.
Pick up your iPad and this Mac's screen is right there — keyboard, trackpad, and Pencil, across every display you have connected, over an encrypted connection.
Send a document from Lectra on your iPad and it lands here. You choose what comes over — nothing moves on its own.
Copy on your iPad during a session and paste on the Mac. It works the other way too.
Left this Mac asleep? Your iPad can wake it and start the session anyway.
Set up in three steps
Install it on the Mac you want to reach. It waits quietly for your iPad, and the rest of Lectra is there the moment you open it.
Drag Lectra into your Applications folder and open it. It is signed and notarized by Apple, so it installs cleanly and opens without a security scare.
Use the same Lectra account you use on your iPad. That is how your iPad knows which Mac is yours.
The first time you open this Mac from your iPad, macOS asks whether Lectra may show and control the screen. Say yes once and it is ready whenever you are.
Questions
It is part of Lectra for Mac now. Opening this Mac from your iPad, catching documents your iPad sends, and the shared clipboard all moved into the full Lectra app, so there is one thing to download instead of two.
No. Lectra for Mac does everything it did, and more. Download Lectra for Mac and you can put the old app away.
Open Lectra on your iPad, go to Remote Desktop, and choose this Mac. You get the screen, the keyboard, the trackpad, and Pencil input, across every display connected to it.
macOS will not let any app show or control your screen without your say-so. Lectra asks the first time you open this Mac from your iPad, and only for that — reading, markup, and notebooks work without it.
No. Lectra does not keep the two libraries in step. Sending a document from your iPad to this Mac is something you do deliberately, when you want it here.
No. It is the full Lectra app on its own — readings, markup, notebooks, Python, and the terminal. The iPad features are there when you want them.
Yes. Lectra is free on every device. There are no tiers, no subscription, and nothing to buy anywhere in the app.
This page. It is a direct download, signed and notarized by Apple, rather than a Mac App Store listing.
Ready when you are
One download: the full Lectra app on macOS, and everything the Receiver used to do, built in.