Medium, the blogging service designed for (you guessed it) medium-length entries, has released its first iPhone app. Unlike most blogging apps, however, the Medium app does not have any writing tools. Instead, the app’s sole purpose is to provide a platform for reading the writings of other users. The app also allows you to bookmark and share your favorite posts and get personalized recommendations based on your Twitter account. You can grab the Medium app for free on the App Store.