the Fitbit mobile app
Workout Genius is a general all-around sports-app.
It offers a great variety of screen layouts and more than 50 different data fields to choose from.
Heart rate, pace, speed, and cadence alerts are available and it is a perfect tool for the race day, or for day by day unstructured training.
The app also provides special features for marathoners like a virtual partner with variable speed for different sections of the course, and last but not least, the multisport mode supports triathlon, duathlon, swim-run, and aquathlon.
To use the app, you must create an account at https://www.geniuswrist.com and a subscription will be required to unlock all app features.
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