I am not the author you are replying to but the grandparent. I thought of pricing for my system the same way.
If your productivity isn't worth 45 a month then this isn't the app for you. On the flip side, if this app makes you one percent more efficient then you generate thousands or millions of dollars in additional value, the price is well worth it.
I'd be fine to pay such amount if the app was polished and had great UX. Not arguing with what you stated.
Seems like this is a common thing people need and I too tried to make an app for this. I gave up on it because the complexity grew fast, but my plan was to release it for free and have some sort of premium. I wanted to have a good product first before asking for money.
What jumped out at you as needing immediate attention?