Mon Écrin on macOS
Installation, first steps, useful settings and answers to common questions.
Install Mon Écrin
- Download the "monecrin-ecrin-macos-<version>.dmg" disk image with the button above.
- Open it, then drag "Mon Écrin" onto the "Applications" folder.
- Launch Mon Écrin from the Applications folder (or Launchpad). The app is checked by Apple (notarised): macOS opens it normally.
- Accept macOS's requests: access to the folders you want to protect (Documents, Desktop, Downloads, external drives…) and notifications.
Mon Écrin works with macOS 13 Ventura or later, on Apple silicon Macs as well as Intel Macs. Always launch it from the Applications folder, otherwise it won't be able to update itself.
First launch
- Click "Sign in with Mon Écrin". A tab opens on monecrin.com: sign in as usual (password, Google or two-factor authentication), then come back to the app. Your password never goes through the software.
- If the browser doesn't open, click "Copy link" and paste it into the browser on this computer. You have 5 minutes to sign in.
- The "Welcome to Mon Écrin" assistant guides you: "Get started", choose your folders, then "Finish and sync". You can then add or remove folders at any time in the "My folders" tab.
- Does your account already have a computer? Choose "Take over a computer" to replace the old one (it will be disconnected from the service) or "Set up as new".
- Maximum number of devices reached? Use "Replace with this PC", or remove a device from "My devices" in your Mon Écrin account, then sign in again.
What you can do
- Mon Écrin lives in the menu bar, at the top of the screen: it has no icon in the Dock. Its menu offers, among other things, "Open the dashboard", "Sync now", "Pause for 1 h" or "Resume syncing", "Settings…", "My vault online", "About" and "Quit" (which stops syncing). Closing the window offers to "Hide in menu bar": sync carries on.
- "Open at login" (turned on by default from the first launch) starts Mon Écrin in the menu bar, with no window, every time you log in.
- The key that protects your data on this Mac is stored in your Keychain. macOS notifications let you know when an update is ready or installed, and about important events while the window is closed.
- Add a folder: "➕ Add a folder…" in the "My folders" tab, or "🔍 Scan this computer" so that Mon Écrin suggests the photo, video and document folders it finds.
- Choose the direction: "To the vault ↑" sends the folder's contents to your vault; "Two-way ↕" keeps the folder and the vault identical in both directions. Each folder becomes an album in your vault, filed under "This PC". To change direction, remove the folder and add it again.
- Deletions: in "Settings", the "When a file is deleted" section offers "Add only", moving a file deleted on the computer to the vault's trash (recommended, the default choice) and "Mirror", which also carries deletions made in the vault over to the computer ("Two-way" folders only, once it is turned on): the file then goes to the computer's trash. When the system trash can't be used (Linux, network drive, USB stick), Mon Écrin replaces it with a hidden ".monecrin-corbeille" folder, emptied after 30 days.
- Automatic sync: a new file is usually sent within a minute of arriving in a protected folder. On top of that, a full check runs every 6 hours (adjustable: 3, 6 or 12 hours, or once a day at a time of your choice).
- Send right away or take a break: "Check and sync" on the dashboard, "Pause" for 1 hour, 2 hours or until you turn it back on, then "Resume".
- Mobile data (Windows and Linux): by default, sync pauses on a metered connection (4G/5G, hotspot) and resumes on its own on a regular network. Tick "Sync over mobile data too" to allow it. On a Mac, this automatic pause doesn't exist.
- Follow the progress: the dashboard shows how many files are "safe", until "Everything is safe". The "Duplicates & ignored files" tab explains why a file wasn't sent (duplicate, size, OneDrive "online-only" file…).
- Get your files back: "Download my entire vault" brings a copy of your vault to this computer, organised by original folder or by date, after checking the free space.
- Remove a folder: "Remove", then "Stop protecting". No file is deleted from the computer, and what is already in your vault stays there.
- Language and appearance: French, English, Spanish or German, light, dark or system theme, in "Settings".
- Lost, broken or stolen phone: the Mon Écrin icon menu offers a direct link.
Updates
- Updates are automatic. Mon Écrin checks for a new version about 5 minutes after it starts, then every 6 hours.
- Every version is signed by Mon Écrin: it is only installed once its authenticity has been checked. An unauthenticated version is never installed.
- When a version is ready, click "Install now" or "Later". If you do nothing, it installs itself within 24 hours, never during a backup in progress.
- You can also click "Check for updates" at any time.
- The new version replaces the app in the Applications folder, then Mon Écrin restarts in the menu bar.
Uninstall
- Quit Mon Écrin from its menu in the menu bar ("Quit").
- Drag "Mon Écrin" from the Applications folder to the Bin.
- To erase its settings too: delete the "~/Library/Application Support/com.monecrin.monecrin-sync" folder and, in Keychain Access, the "com.monecrin.monecrin-sync.cle-maitresse" item. Your files and your online vault aren't affected.
Common problems
"Update not possible: move Mon Écrin to the Applications folder"
Mon Écrin was launched straight from the disk image or the Downloads folder. Quit it, drag it into the Applications folder, then launch it again from there.
Mon Écrin doesn't start on its own when I log in
macOS may ask for your permission. Open System Settings › General › Login Items and allow Mon Écrin, then check that "Open at login" is ticked in its settings.
A folder can't be accessed
You may have refused the access macOS asked for. Open System Settings › Privacy & Security › Files and Folders, then allow Mon Écrin for that folder.
"Update not possible: this account can't modify the folder where Mon Écrin is installed"
Mon Écrin was installed by another account on this Mac. Log in to an administrator account to do the update, or install the app in a folder your account can write to.
The browser doesn't open for signing in
Click "Copy link" under the sign-in button and paste it into the browser on this computer. If the message "Sign-in timed out" appears, start again: you have 5 minutes to sign in.
A folder is refused ("Folder can't be added")
Mon Écrin refuses system and program folders, the whole root of a drive (choose a subfolder), a folder that is already protected, located inside a protected folder or that contains one (remove the inner folder first), and a folder that can't be found or can't be read for lack of permissions.
"A watched folder is unreachable"
The external drive, USB stick or network share holding this folder can no longer be reached. Plug it back in, then click "It's back — try again".
"Your vault is full"
Uploads are paused. Click "Upgrade my vault" to change your plan, then "I changed my plan — resume".
Nothing happens when I start Mon Écrin again
Mon Écrin is most likely already open: it can only run once at a time for your account on this computer. Look for its icon near the clock (or in the menu bar on a Mac) and click "Open the dashboard".
A file wasn't sent
Open the "Duplicates & ignored files" tab: every file left out is listed there with its reason (duplicate, maximum size for your plan, "online-only" file to download to the computer first…).
Need help?
Our team will get back to you from the Support page. In the app, the "Report a bug" link at the bottom of the window takes you straight there.