Download of TrackGuide 9.5.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software belongs to Lifestyle Tools. We recommend checking the downloaded files with any free antivirus. The actual developer of this free software for Mac is Bert Torfs BVBA.
From the developer:
TrackGuide GPX Editor is a free companion application to TrackGuide for iOS. It lets you edit, import, modify or create guided Walks that you can export as GPX files or share with TrackGuide on iOS/Apple Watch. The app allows you to import GPX files, move, add or remove points, add interesting points with multi-lingual descriptions and pictures, and import Walks saved in iCloud by TrackGuide iOS.
You may want to check out more software for Mac, such as Spartan or merkaartor, which might be related to TrackGuide.