711 Best Guitarists of Rock is an Android app developed by Ioannis Vlachos for rock music enthusiasts. The app is free to download and is categorized under Lifestyle. The app is a list of 72 best guitarists of rock based on the developer's personal preferences. The app was created for fun and to test some technologies like jQueryMobile and phoneGap.

The app is interactive and allows users to comment on the user interface and suggest any guitarists that they think should be added to the list. Additionally, each guitarist on the list has a link to a YouTube video, allowing users to listen to their music and watch their performances.