Off-The-Grid Maps (Memory Cards) ← Knowledge Base How to install Off-The-Grid Maps (SD card) on my Android device How to install Off-The-Grid Maps (SD card) on my iPhone or iPad Do I need a cell or data connection to view the Off-The-Grid Maps (SD card)? How to Register an Off-The-Grid Maps (Memory Card) Product How to install updates for my Off-The-Grid Maps (SD card)? What happened to my personal data (photos, videos, contacts)? How to copy Off-The-Grid Maps to another memory card How much of my device’s internal memory will be used? Does the Off-The-Grid Maps (SD card) always need to be in my Android phone? Why do I get error message "You do not have access to this pack; please activate your purchase" on my iPad/iPhone? Do you use USGS topo maps?