Tap the account switcher in the top left corner and you should see the option.
See my comment for a screenshot. I don’t know why I can’t seem to post a screenshot in the body of post. Every time I try it gets removed.
If the subscription was $200/year, would you consider $250 for lifetime to be a deal?
The sub includes more feature unlocks than just ad removal. The pro unlock doesn’t include user tagging anymore like it did for reddit for example.