The post-pandemic era has ushered in a new running boom. Run clubs are ubiquitous in cities around the world, with record attendance at major marathons year-over-year.

Today's runners are changing the image of the sport: instead of focusing purely on speed and competition, they are driven by community, self-expression, and mental health.

At the same time, elite runners and coaches are encouraging a more intuitive approach to performance centered on effort rather than prescribed paces.

The sport is evolving fast, but fitness apps still look and function mostly how they have for the past decade. It's time to catch up.

Source is a fitness tracker based on feel, not pace. By eschewing the quantitative for the qualitative, Source offers a more meaningful model of your mind and body in motion.