We stopped using this because it would randomly stop timing during walk/run periods. Wed be thinking "hasnt it been 90 seconds?" only to open the phone up and see that it was "stuck" on a time. Case example. I went for a run at 6:30 and it stopped working during the exercise so I put the phone away and ran. 2 hours later it popped up saying it was time to walk....
First app I feel like Ive legitimately wasted my $$.
Wheelz o steelZ about Run 5k - couch to 5k program, v1.4