A workout tracker with a muscle activation map

See what you actually trained. A visual muscle activation map, not just a list of sets and reps.

Friend stat comparisonTraining load statsFriend stat comparisonMuscle activation map

Every set you log builds toward a real picture of your training - which muscles you're actually hitting, and how your strength is trending over time.

Muscle activation mapFriend stat comparisonTraining load statsFriend stat comparison

Every plan draws from a real exercise library - search by muscle group or equipment, or add your own with a how-to video, so a workout is never built from a description alone.

Friend stat comparisonFriend stat comparisonFriend stat comparison
How it fits with the rest of Castra

Pair training volume with your measurements over time.

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Castra in use

See it for yourself.