Yes Runkeeper can be used by bike, ski or any other distance sporting activity, it is especially in racing that it will be most effective. The app emphasizes motivation, leading you to set specific goals to achieve, either through unique sessions or through various training programs (weight loss, fitness, preparation for a race, etc.)
The voice coach’s comments and the music on your smartphone will help you stay motivated. It is unfortunate, however, that certain approximations in the use of GPS can confuse certain results.
Runkeeper has a social dimension: you can update your profile, which brings together your objectives and your results. Your friends will be able to follow your performance as you will be able to follow theirs.