Goodtags is an iPhone app developed by Kenji Matsuoka, available for free in the Multimedia category under Music & Radio subcategory. This app offers a rich interactive interface to access a library of community-generated barbershop tags or song snippets sourced from barbershoptags.com. Users can store their favorite tags on their device, organize them by label, and easily navigate lists without leaving the sheet music view.

Additionally, Goodtags allows users to play the starting note for a tag, find specific tags by ID, listen to learning tracks, and watch educational videos. It provides a convenient and user-friendly way for barbershop music enthusiasts to explore and enjoy a variety of tags seamlessly.