Since Okta doesn’t provide out of the box solutions for single sign on from okta mobile -> other mobile apps on iOS, we solved this problem using universal deep links. This works great in the browser when logged into okta, opening our app without issue. However whenever you try to login through the Okta mobile app, it loads the app in its own baked in web view, and the universal links seem to be blocked since it will not launch our native app. Even worse, there is no setting in the app to opt out of the built in web view and have it open the app in safari instead.
I hope this can be fixed in a future update, as it will force users to have to use a web browser on their mobile devices to use single sign on with okta instead of the okta mobile app.