The application needs to store various data on the user device, including:

• Saved landmarks (waypoints, tracks, etc.);
• Online maps stored areas, so maps can be available offline;
• Onboard map indexes, to improve loading speed;
• Various configuration and cache data, including added maps, favorite map sets, etc.

For devices running Android versions less that 4.4, the application will try to detect and use by default the external SD memory card if any. Otherwise, the device memory will be used.

For devices running Android version 4.4 and more, the application will use by default the device memory.

As of Android 4.4, the memory management has been modified:

• The device memory is called “Primary external memory”. This is the main storage memory, used by default by the application. This memory is usually quite large (up to hundred of GB);
• The SD card memory (available on some devices only) is called “Secondary external memory”. This space is not freely editable by applications anymore, only a specific folder per application can be used, as explained below.

As explained above, only a particular folder is editable by the application. This folder is:

• /Android/data/net.psyberia.offlinemaps/ for the ad supported version;
• /Android/data/net.psyberia.offlinemapsplus/ for the + (paid) version.

Note that when uninstalling the application, this folder will be automatically deleted by Android, so all stored data will be lost.

To set up the storage on this folder:

• Click on the main menu icon ;
• Click on the “Settings” menu item;
• Select the the “Storage device” setting;
• Choose the device that matches both your SD card and the folder listed above ;
• Click on the “Ok” button to validate the changes;
• Restart the application.

In case the entry that matches the given folder is listed as read only, you may need to create it manually using your usual Android file explorer.