I may be mistaken but I could have sworn I paid for both the iPhone and iPad version of ReaddleDocs. Earlier, I noticed an update while on my iPad and it showed that an app called "Documents" will replace ReaddleDocs so I updated. When I grabbed my iPhone, I expected to see a similar update, but I did not so I went to www.readdle.com and discovered that only the new "Documents" app is only for the iPad and is FREE for everyone. It is the exact same app with a little cosmetic modifications. Those of you who use ReaddleDocs on your iPad, do you recall paying for it?