You don't understand my intention behind my statement, can that be? The essence of my statement is that I'm not a fan of buying full versions and then adding in-app purchases to the app years later. Over the years, there have been many apps that had an unlocker at the beginning and then broke due to in-app purchases. I have no problem giving a small sum for development, but then on a voluntary basis. I'm very picky about this because it's a matter of principle for me.