Yep, paying subscribers can rename and delete tags across all of their diary entries, reviews and lists from the main Tags page on our desktop website (app support will be added in a future update). Place your pointer over any tag to reveal the Edit and Delete icons. The Edit option lets you rename a single tag across all your tagged content, and can be used to merge two tags (by renaming one tag to the same name as another of your tags) — you’ll be warned if editing a tag will result in a merge, and given the option to cancel or proceed. The Delete option removes a tag from all your tagged content. There is no undo for these actions, so please be careful!