On Mac:

1. Download the app from this link.
2. Open the downloaded DMG file. You will see a WordPress.com icon and an Applications folder shortcut on the right.
3. Drag the WordPress.com icon into the Applications folder.
4. Open the Applications folder, and open the WordPress app.
5. If you’d like to keep the app in your dock, right-click the app icon in the dock as the app is running, and select Options → Keep in Dock.

On Windows:

1. Download the app installer from this link.
2. Open the installer and follow the instructions.
3. Once the app is installed, you can double-click the app icon on your desktop.
4. If you’d like your app to be in your taskbar, you can drag the icon from the desktop to your taskbar.

On Linux:

1. Download the app for your flavor of Linux from this link.
2. Open the downloaded file and follow the instructions.