Very soon a new version of Transas iSailor will be released. Starting from that day, you will be able to import/export routes and tracks in KML format.I used the Navionics app, but don't like the latest version. I found another app called iSailor, which I like, but is lacking a couple features like being able to down load tracks. All my sailing is coastal, so my only navigation software is my iPhone and my iPad.