For several years I also have been using an AMOD geologger that logs GPS location data in real time. There is software that correlates the GPS log data with the camera images and allows me to up load the data to Lightroom. I use HoudahGeo software for Mac but there are lots of other applications. While this does mean I have to carry an extra piece of gear, the batteries last for days, unlike my not-so-smart phone which will die in 6 hours if I log GPS data with it. Plus this is a much cheaper solution than the Canon devices.