Plan2PEAK Apple Watch app features: 
- supports Running, Cycling, Strength, Cardio, Yoga, SUP, XC Ski etc.
- export data in .fit via email or automatically to STRAVA
- pair external Heart Rate and Power Sensors (BLE )
- select the data fields you like to see
- monitor speed/pace, heart rate, power, cadence, altitude gain, rolling km/mi averages
- get audio guidance during activity (guide timer adjustable)
- auto pause and resume
- SIRI support to start/ pause/ stop also with gloves or wet conditions
- app is independent from iPhone
- create workouts (in iPhone app) and configure your training plan to execute with audio guidance on your Apple Watch

Plan2PEAK iPhone app features:
- create workouts you can export to Apple Watch or Garmin devices.
- monitor training load with 2PEAK battery
- test 2PEAK training plan 21 days for free with no commitment.
- app price is refunded in case you purchase an adaptive 2PEAK training plan.

2PEAK calculates YOUR individual OPTIMAL training load for each and every workout to get you on the mark at the peak of your potential.

OPTIMIZE TRAINING LOAD
In order to improve your form you have to train hard so that your body is forced to adapt (it will improve). But you cannot train too hard because this will weaken your body instead. 2PEAK recalculates constantly the precise training load that you require to reach your full potential.

http://2peak.com/2peak/terms.php & http://www.2peak.com/2peak/privacy.php