I learned the hard way it's better to start low and the raise prices than to start high and then have to lower them.
You wanna give the early adopters a better deal than the later ones.
I knew this app was unique (I frankly have never seen anything close to it) and i knew it was adding value because I use it all the time myself and it has some potential so I could go way higher and still make the same if not more.
But I decided to start at this price because i didn't know what kind of bugs would surface once many people started using it. That way people don't feel like they are overpaying even when they find bugs and I am kind of giving them a discount to provide me with valuable information.