As an registered user you can easily drop an idea how to improve any app. And I assure you that, every single idea will be taken into consideration, and most likely will be implemented. In addition you can leave public comment or rating on any app.
Almost everywhere in the content of this website which refers to the owner is told in plural (e.g. "about us"). Despite the fact this is just a one-man project.. at least until I need someone to help me.
If you have anything to ask or want to give feedback concerning any rawrix.net site, don't hesitate to contact me :)