Suunto-sphere: Movescount
Free; iOS
Like the Garmin Fit app, we recommend the Movescount app for runners who already use the associated web portal of their GPS watch—in this case, a Suunto Ambit. The app is dead-simple to use and tracks time, distance and pace while allowing you to navigate a previously planned route so you don't get lost. Workouts are synced with Movescount.com only.
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Cheering Squad: Nike+
Free; iOS, Android
In addition to the basic tracking—distance and time—Nike has engineered its app to cheer every time you receive a Facebook "like" or comment, encouraging you to keep running strong to the end.
Motivational Speaker: RunKeeper
Free; iOS, Android
Kick your training into another gear with training plans created by expert coaches like Jeff Galloway. Or, if you want to draw inspiration from your circle of friends, you can share your activities with your social networks and see how you stack up against your friends in monthly leaderboards.
First Look at RunKeeper Breeze
Storytime: Runtastic
Free; iOS, Android, Windows Phone
Do you prefer audio books or podcasts over music during your runs? Then try out "Story Running," in-app downloadable stories ($1 a piece). Each audio track is roughly 35-40 minutes long—just about the same duration as your typical daily jog.
More: (Infographic) 10 Newbie Runner Questions Answered
Get more half-marathon racing tips and advice.