I typed in “level” with search in the app store.
Some are free while others have a cost.
Just a thought to help and maybe work. If it’s free you can’t beat the cost.
My son had a level app on his iPhone and we used it to hang framed pictures on the wall.
I also see apps available that can measure, room size as an example, with an iPhone.
I can freeze time.
What's your super power?