Weird Glitch

I just downloaded this app and added some habits, around 5. All was well. Then I went to add another one by pulling down (only option to add) and I keep getting the screen to try premium free for 7 Days or upgrade. When I X out of that I’m back to my habits - not the screen to add a habit. And I keep going in circles with no way to add a habit. Is there a limit to the amount you can add to the free version so I’m forced to upgrade? Which I’m not going to do.
Up until the issue it seemed like a simple, clear to use app. But disappointed and shopping for a replacement app ?

hhilson about Productive - Habit Tracker, v1.8