To be able to import markers to Savvy Navvy. First you need to export them from another app or data source. We will detail how to do this below. Once you have the exported points you need to get them onto your device to be able to import them. There are couple of obvious ways to do this:
Export: Go to Menu, and select Markers. Then choose 1 or more items, and share. You may either export a GPX file via email or your favorite messaging application — or share a link on social media. It’s your call.
C-Map only supports point import; sadly, there is no export option.
GPX export is an Argo premium feature. Open a route or track to view the details, tap the three dot menu in the upper right corner and select Export as GPX File. Then select from multiple options how to export the file. If the file is not on your target device, transfer the file to your target device using cloud storage or a messaging app.
Go to the Waypoints Screen, then Select “Import/Export” to transfer waypoints or routes to/from iNavX. If the file is not on your target device, transfer the file to your target device using cloud storage or a messaging app.
To get more help read the Savvy Navvy user guide