I had to try and use this app on a recent charity event over 4 days and on some training runs before I went. It never worked correctly once. Every time I used it it stopped working at about 4km. It was the same for others in my group. It seems to have a problem working with android as all us using android had the same problem. Other runners using iPhones seemed to be ok and I had to rely on them for my directions. **Update has fixed the problems and is now usable and preformed ok on my last run.