The problem with the outline as it is now, is that it takes you out of the text you're writing. You cannot view the outline and also retain the cursos in your text. Sometimes you want to just look at the outline without having all your text disappear.

For some time it worked just fine but after the latest update from Apple I cannot read my texts on iPhone or edit

I’m a PhD student, and I always wanted an app like this. When I saw it, I thought it was a dream come true so I buy the three apps, author, reader and liquid. After using them I can say that, I completely love the idea and the concept of the apps. I hope that this apps from augmented text continue evolving in order to someday become my main option to go when writing and recommend them to all my friends and colleagues (Hardware MacBook Pro M1).