I use Ultra GPS Logger and highly recommend it; but, as I recall, it costs a few dollars. It can create several different file formats for your gps data, one of which is recognized by Lightroom.
Originally posted by robert Will this app have a web site that will transfer the Geo info to my photos so they will show on the Lightroom map module?
The Lightroom Map module will integrate the gps data from your .gpx file with your photos depending on the time stamps. This is done within Lightroom without going to an outside web site. In the Map module under the Map/Tracklog menu,
Load Tracklog... and then select
Auto-Tag Photos after selecting the photos you want auto-tagged.