When comparing iSmoothRun vs Runtastic, the Slant community recommends Runtastic for most people. In the question“What are the best apps for runners?” Runtastic is ranked 5th while iSmoothRun is ranked 6th. The most important reason people chose Runtastic is:
Runtastic is capable of informing users of their pace, distance traveled, heart rate, and altitude, along with a detailed map that is saved into "history".
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Pros
Pro Integration with Apple HealthKit
Pro Choose many customizable metrics on phone and watch screen
Pro Exzellent interval options: Free editable, Visual and acustic clues
Pro Permanent cadence display
Pro Bulk imports/exports to popular fitness platforms
Post to the most popular running sites: RunKeeper, Strava, Dailymile, Nike+, Garmin Connect, Training Peaks, RunningFreeOnline, Tribesports, MapMyRun, 2PEAK, Movescount, Fitbit, MyFitnessPal. Export of TCX, GPX through Dropbox.
Pro Support many sensors
Pro Accurate exercise tracking
Runtastic is capable of informing users of their pace, distance traveled, heart rate, and altitude, along with a detailed map that is saved into "history".
Pro Includes an audio coach
The audio coach provides updates at each checkpoint. The trainer is capable of telling the user total duration, pace, speed, calories burned, calories burned, and heart rate (if wearing a monitor).
Pro Support for interval training
This app encourages users to utilize their interval training feature. This feature is easy to use because it is integrated with their voice coach who well notify the runner when the next interval is arriving.
Pro Keeps a detailed history
The completed workout's map is saved along with all of the data collected about the workout. Because of this feature, users can easily track their improvement and accurately set goals.