Yes, you do, the application process is jail-related and is mandatory whether you use IA or not.
https://www.inmateaid.com/ask-the-inmate/in-making-this-phone-account-on-the-inmateaid-site-do-i-still-have-to-do-a-formal-phone-application-and-be-approved-before-i-39-m-able-to-use-this-account.amp#answer
Accepted Answer Date Created: February 12,2020