1. Navigate to Message via the side menu bar.
2. Select a conversation on the left pane.
3. Click the More kebab icon at the upper right of the center pane.
4. Click Add apps from the dropdown menu to be redirected to the Discover apps page of the Apps menu.
5. Search the list of available apps by browsing through the tiles on the right pane or by using the search bar on the upper right.
6. Hover your mouse over the app tile and select the Add button.
7. Follow the instructions on the Set up (app name) modal window to connect or log in to the app.
8. Click Finish.