01
Honest calories
The Pandolf load-carriage equation, with body weight, pack weight, speed, grade and terrain. A 35 lb ruck up a gravel hill is not a stroll, and your numbers say so.
Health & Fitness
Live
Rucking Tracker: LoadlineTrack the weight you carry.
Calories from the load on your back, not a walking guess. Live tracking from iPhone or Apple Watch, a load gauge on every screen, and Apple Health that sees the weight.
- On-device tracking
- No account required
- iPhone & Apple Watch
Inside Rucking Tracker: Loadline
In practice
What it does
02
The load gauge
Your current pack as a share of body weight, always on screen, with the 10 to 20 percent band most people train in marked on the rail.
03
Presets and gear
Build packs from plates, rucksacks and water; weigh a pack in one tap; pick one and start. Terrain and a distance or time goal sync to the Watch.
Pricing
Loadline Pro subscription required.
Free to download. A Pro subscription is required to use the app. The annual plan includes a seven-day introductory trial for eligible subscribers; Apple shows current pricing and eligibility before purchase.
Good to know
Frequently asked questions.
Does Loadline require an account or an internet connection?
No. Tracking, gear, history and Apple Health work entirely on your iPhone and Apple Watch. Only Crew, the optional social part, needs iCloud.
How are calories calculated?
With the Pandolf load-carriage equation, from your body weight, pack weight, speed, grade and terrain, integrated over the ruck. Apple Watch calorimetry ignores pack weight, so Loadline writes its own energy figure to Apple Health and keeps the raw numbers in the workout's metadata.
What does Loadline write to Apple Health?
Each ruck as a Hiking workout, with Loadline's calorie figure, the distance, the route and your pack weight in the metadata. It reads heart rate during a ruck and, in Import, your existing workouts, only when you allow it.
Is Loadline free?
Loadline is free to download and requires a Loadline Pro subscription to use, sold and billed by Apple. The yearly plan includes a seven-day free introductory trial. Manage or cancel it in iOS Settings under your Apple Account, Subscriptions.
Where does Crew data live?
In your own iCloud, through Apple's CloudKit. Loadline has no server and cannot read it. Delete my social data, in Settings, removes your profile, posts, kudos, comments, follows, clubs you founded and messages from iCloud.
Does Loadline show ads or use analytics?
No. Loadline contains no advertising, no analytics and no third-party SDKs, and its privacy manifest says so.
Ready when you are
Make room for Rucking Tracker: Loadline.
Loadline Pro subscription required.
