Cycling app which one do you use strava or mytracks

I started cycling and one of the benefits of having a mobile device is to track your efforts. I started using mytracks from google which worked well. Now I use strava for android which I find one of the best so far. I recently went out on the olympic route and it was good to see some of my personal bests in the program plus how I compare to others in the listing. Which program do you use for cycling and why. Vincenzo