No. ScoutIQ is designed for use on one device per Seat, and only one User at a time can be logged in with a given email address. Logging in to the app on one phone or device will cause that user to be logged out of the app on any other phones or devices, and the app will not function properly if logged in to the app on more than one phone or device. However, LivePro subscribers can pay to add additional Seats at a reduced cost.
You may find the following articles helpful:
How to Add Seats & Users (also called Team Members)
Seats & Users Defined
How to Remove Users and Seats (also known as Team Members)