Rucking Tracker: Loadline

Loadline is a rucking tracker built around one number: what is on your back. Every other fitness app treats a loaded march as a walk. Loadline uses the Pandolf load-carriage equation, the standard for military load research, so calories reflect your body weight, your pack weight, your speed, the grade and the ground. A 35 lb ruck up a gravel hill is not a stroll, and your numbers should say so. • The load gauge. Your current pack as a share of body weight, always on screen, with the 10–20 % band most people train in marked on the rail. • The load ladder. Where you are and what the next step up weighs, so progression is a decision rather than a guess. • Presets and gear. Build packs from plates, rucksacks and water; pick one and Start. • Live tracking from iPhone or Apple Watch, with auto-pause that waits for you to actually stop, mile or kilometre splits, a Live Activity on the Lock…