ER Companion is an unofficial offline map for Elden Ring, available for Android devices. It is a useful utility tool for players who want to explore the game world and find various collectibles, including enemies, dungeons, sites of grace, ashes of war, equipment, items, materials, and more.

The map is interactive and features icons that can be tapped to reveal detailed descriptions in a popup. Additionally, the app allows players to track their collectibles with a checklist that can be checked or unchecked from the icon shown on the map.

One of the best features of ER Companion is that the shown icons on the map can be filtered by their type, location, and status, making it easier for players to find what they are looking for. Overall, ER Companion is a useful tool for Elden Ring players who want to explore the game world and find all the collectibles it has to offer.