Payment for premium features - Is it really necessary?

Im seriously bugged by the fact that you must pay real money in order to really enjoy the app. I know the amonts of money asked for are minimal, but still: there are people who just can't pay for them, or they dont have a method, or dont have money at all. It's really frustrating and though if it is to fund the creators or whatever, its not good to restrict the app that much even if it's to mantain itself. It's just not a nice thing to do because the quality that FlipaClip has it's MAGNIFICENT, but that little thingy screws it over.