Trailfold

GPX field cards for macOS. Open a track or route, inspect its vector outline and elevation, add a field note, and export a one-page PDF. No account or internet connection is required to process files.

Download sample GPX files

These original synthetic routes are examples for testing, not navigation advice or recorded personal journeys. They will remain available here for future App Review and customer support.

Coastal Ridge Sample.gpx — elevation, timestamps and two waypoints.
Lake Loop Sample.gpx — closed loop, elevation and three waypoints; no timestamps.

Download either file. In Trailfold, click Open GPX, select the downloaded .gpx file, inspect the route and elevation, type a Field Note, then click Export route card. The source GPX is unchanged. An exported PDF can be opened in Preview.

Support

Email maga40@naver.com. GPX files must contain at least two track or route points, be at most 25 MB, and contain at most 100,000 route points. Elevation and recorded duration depend on information in the source. Trailfold does not download maps, navigate, fetch elevation or edit the GPX.

Privacy

Gobling Company does not collect data through Trailfold. There are no accounts, analytics, ads, tracking or developer uploads. The selected GPX and a file bookmark remain on your Mac. PDF files leave only when you choose a destination. Support emails and attachments are received only when you voluntarily send them. Contact maga40@naver.com for privacy questions.