Built by ruckers. For ruckers.
We logged rucks on Strava with weight in the notes field. Calories were wrong by 40%. We coordinated Saturday morning rucks across three different group chats. A friend got a stress fracture adding 20 lbs in two weeks. No app warned him.
Every fitness app treats rucking as an afterthought — a walking workout with a note about weight. They don't understand that the load changes everything: the calories, the effort, the risk of injury, the mental demand.
We wanted something that took weight as seriously as we do. Something that would keep beginners safe while they build the habit. Something that would connect ruckers with each other, because this practice is better shared.
So we built it. Not a fitness app with rucking bolted on. A rucking app, from the ground up.
By the numbers.
68
achievements designed around real rucking milestones
8
training plans from 6 to 20 weeks
12
competitive platforms analyzed
2022
year the LCDA equation was published — the USARIEM model we use for calorie accuracy
What We Believe
Comfort atrophies capacity.
The weight you carry today prepares you for the weight you didn't choose tomorrow.
Voluntary hardship builds what ease cannot.
Muscles, endurance, discipline, community — all forged under load.
Safety enables growth.
Muscles adapt in weeks. Tendons take months. The 10% rule exists because enthusiasm is the most common injury in rucking.
The practice transfers to everything.
Ruckers don't quit hard conversations, hard jobs, or hard days. The trail teaches you to keep moving when the weight is real.