I only started to use this middle of last year when I invited my friends and family (from different part of the globe) to a steps challenge, and with the pandemic and people needed to boost their immune system and at the same time motivate them to walk, run, that was a HIT, and from the steps chall... Show more enge, we did calories, distance and number of work outs. We also became Under Armour customers, from Nike and Adidas, we found UA shoes very comfortable. So why four stars only? First, because the developers took out the steps challenge. It’s the activity that people of all ages find so motivating. Second, there are so many improvements that programmers can do on MapMyRun - like team competition, limiting challenges to certain activities (for example, distance or steps challenge - you can limit the activity to walk, run, treadmill, etc and not all or one), social media enhancements, etc.