Practices, workouts, and intervals
Many workout apps, especially for running or cycling, treat your entire activity as a single, undifferentiated effort. And if you want to capture your rowing or paddling workouts in that way, you can just use the default "Just Go" workout in CrewNerd.
But if you're training for competition, you will often want to perform different kinds of workouts based on time or distance and at different levels of effort, and CrewNerd is designed to support this.
In CrewNerd, your entire outing is called a "Practice". During each practice, you may select and perform different kinds of workouts. You might use a "Just Go" workout to capture your warmup, and then proceed to a series of single time or distance workouts, or maybe interval workouts of some kind, finishing with cool-down period recorded as another "Just Go" workout.
Each workout that you select consists of one or more intervals, possibly followed by rest periods of a prescribed duration.
All of the workouts that you execute during a practice are grouped together in your workout history. CrewNerd can show you summary information for the entire practice along with summaries for each interval within the workouts.
You don't need to do anything special to end your practice. Your workouts will be added to your workout history as you go, and you can even look at your history during the practice without causing it end.
CrewNerd automatically starts a new practice any time it is launched and there has been a period of 15 minutes or more since your last activity. During your practice, you can stop to answer a phone call or respond to a message and then return to CrewNerd to resume your practice. As long as you do this within 15 minutes, you will be continuing in the same practice.
Note: on the Apple Watch, you must use the "Finish" button on the controls page to explicitly end your practice. This is required because of the way that workout apps interact with watchOS.