Horizon Companion is a free offline map designed for Horizon Zero Dawn players. It assists players in tracking important locations, items, and collectibles such as Vantages, Ancient Vessels, Metal Flowers, Banuk Figures, Texts, Scanned Glyphs, Campfires, Machine Sites, and Merchants. With this app, players can easily navigate through the game's vast world and keep track of their progress with a checklist.

The app's interface is simple and easy to use. The map is interactive, allowing players to zoom in and out and pan in any direction. The icons representing the different locations and items are clear and easy to understand. The checklist feature is also user-friendly, allowing players to mark off items they have collected and keep track of what they still need to find.

Overall, Horizon Companion is a useful tool for Horizon Zero Dawn players who want to make the most out of their gaming experience. The offline map and checklist features make it easy to navigate and collect all the game's important items and locations.