Orca is a desktop app. You can start download here.
Clicking on the link will open a new tab to the download page. Alternatively, you can access the download page via the home page by clicking on Start a free 7-day trial.
The download should start automatically, but if it doesn't you can restart the download by choosing the appropriate operating system at the bottom of the screen.
After downloading, find and install the app by double-clicking on the file.
Once the app is installed, you'll need to drag and drop the app into your applications folder.
To open Orca, go to your applications folder or press F4 on your keyboard, locate the app, and click on it. You'll find the app running in the menu bar.
Voila! The app is installed. There are a few more things that need to happen before you start creating and running campaigns.
Next, let's link your to the web app where you'll handle 99% of your workflow.
The desktop app up and running in order for your campaigns to run properly.