PhotoLocator is a geotagging app capable of importing GPS traces from GPX and KML files and applying the GPS positions to JPEG files by synching with image timestamps.
PhotoLocator will also permit GPS tags to be imported from pre-geotagged photos. The locations can be set automatically based on timestamps or manually copying/pasting from other files or selecting the map. PhotoLocator can perform a lossless update of the EXIF data. KML files can be obtained directly from the Google maps location history, and many sports and location tracking apps can export GPX files.
It additionally includes a full-screen slideshow feature with a small location map display. You can drag/drop-in files/folders to produce a slideshow across multiple folders.
PhotoLocator is an excellent little geotagging app for those that want more details/options with their images for location details and maps.
Lossless setting JPEG/JPG geotags KML and GPX GPS trace import Manual and automatic geotagging Full-screen slide show with map and optional EXIF data