iMIMS can be installed onto your iPad.
Do note that iOS7 introduced a number of User Interface changes and improvements. One thing you may not be aware of is that the App Store on your iPad will only display iPad apps by default. You can still install an iPhone App (such as iMIMS), but you must tell your iPad to display iPhone Apps.
Watch this video for a quick demonstration on how to search for and install iMIMS onto your iPad.