The iTunes store has both "doit.im HD" and "doit.im for iPhone". Both of these are being regularly updated, and they seem to overlap quite a bit. I have used both of those apps on my phone and tablet, but have not had both installed at the same time. I went to your doit.im website hoping to find clarification, but found to reference to the HD product there. Based on the version numbers, it appears that the website is dealing with the doit.im for iPhone product. How can I get some clarification concerning the differences between these two apps?