Ive been training for a half marathon for awhile and used the app quite a few times. Probably the best feature to me is that it is a program already built in that is very easy to follow along.
Bad part? Here in the winter Ive been running indoors on a track and it couldnt be any worse as far as accuracy on distance and times sadly. I run with a fitbit as well so I know how many miles Ive actually ran, also can tell obviously by how many laps Ive ran, but it would be great to be able to count on just one app for all of my running needs. When I say inaccurate I mean, I actually ran 5 miles but its saying Ive run 3 in the app, maybe it is just a poor connection and it cannot register the GPS signal? But Ive tried multiple indoor tracks and all have had the same problem.
Now, that said, when the spring comes around and Im running outside, Im sure it will be better.
bwyrick about Half Marathon Trainer: 21K Run, v7.3