I appreciate the update, @Exuberant_intuition5549, and apologize for the continued confusion.
I did double-check your plan and what was available before I responded. You can see an X next to Illustrator on iPad at https://helpx.adobe.com/account/individual/subscriptions-and-plans/plan-types-and-eligibility/cc-app-web-mobile-access.html.
These changes were made as part of the pricing changes discussed at https://helpx.adobe.com/account/individual/subscriptions-and-plans/plan-types-and-eligibility/changes-to-individual-plan.html that occurred earlier. You opted to switch to the Standard plan on January 26th.
You could purchase a separate Illustrator plan from the Apple app store, @Exuberant_intuition5549, but I think you will find more value in upgrading to a Pro Plan for the money you spend. The app store subscription would only give you access to Illustrator for iPad.
There is no penalty to change your plan, @Exuberant_intuition5549, so feel free to use the steps at https://helpx.adobe.com/account/individual/subscriptions-and-plans/plan-changes-and-upgrades/change-adobe-plan.html if you decide to change to the Pro plan that includes Illustrator for iPad, and Photoshop and Lightroom on the web.
Generative credits are also included with a Pro plan, which I have personally found invaluable for my volunteer efforts outside of work.