World Mobile List (WML) is a community-run project documenting and ranking some of the hardest Geometry Dash achievements completed on mobile devices. Its Demonlist organizes challenging levels into ranked categories, including Main, Extended, and Legacy lists, while a Future List tracks levels that may qualify for ranking. WML reports more than 600 ranked demons and over 4,000 player records. Players can submit completion records directly through the website, where list editors review each submission. The site also provides guidelines covering record verification, permitted and prohibited software, level placement, player profiles, and team responsibilities.

For players interested in rankings and progress, WML offers individual and national statistics viewers, player profiles and accounts, level pages, pending submissions, and tools to sort lists by position, alphabetically, or by region. Its Time Machine presents historical list data, though the site notes that some earlier information may be incomplete or inaccurate. WML is maintained by community administrators and editors, with dedicated channels for list questions, suggestions, bug reports, and development inquiries.