Begin by creating a new SharePoint Team Site

Click "Site contents"

Select "New" then "App"

On the left under Filter, be sure to select "From my organization".

Find the Infowise Ultimate Forms App then click Add
(If you don’t have the App, contact your SharePoint Admin)

Click Trust It to install

Click link to return to Site contents page

Refresh the page until the app has a solid color as shown then click on the “Infowise Ultimate Forms” link

You may get a warning message “Editing web part pages not permitted”.
Your SharePoint Admin will need to do these steps before you can proceed:
https://www.infowisesolutions.com/blog/working-with-office-group-sites

Click back in your browser to return to Site contents