in case you still have missed a few files, using an application like AppCleaner can help you finding everything related. its a very small app you can find it all around the web i believe. if you install and run it, just drag and drop an application onto the displayed folder and let it search a few seconds.
be sure to activate smart delete in the preferences and in case you may have not logged off and some parts are still running, uncheck protect running applications or whatever thats called in engllish. its not a guarantee it will work but give it a try.
and by the way its not called irhino anymore thats now the app for ios.