You can use any GPS tracking app that can link to Strava. You will need a Strava account to be able to link to RFTW, however you don’t actually need to use the Strava app if you have another, preferred app, linked to it. For example, I use a Garmin watch and I have created a Strava account which I have linked to my Garmin Connect app. This means when I run using my Garmin watch, my run will be recorded on my watch, transferred to the app then linked to my Strava account which in turn links to RFTW. For more information, please see the ‘How It Works’ page.