TrekBurn
Hike. Burn. Repeat.
Free · $3.99 to unlock lifetime
TrekBurn is an offline-first hiking calorie and energy tracker for the backcountry. It calculates your baseline metabolic rate with the Mifflin–St Jeor equation, then tracks your daily energy deficit by reading active calories, distance, and elevation from Health Connect — all stored locally on your device. Built for mountain hikers, backpackers, and anyone heading off-grid who wants to know their numbers without draining their battery or surrendering their data.
Screenshots
Features
Battery-First
No constant GPS polling. TrekBurn reads aggregated data from Health Connect, so your phone survives multi-day expeditions.
Offline by Design
No INTERNET permission. The app is physically incapable of transmitting your data, and everything works deep in the backcountry.
Absolute Privacy
No servers, no cloud, no tracking SDKs. Your weight, calories, and trek history never leave your device.
OLED Pitch-Black
A high-contrast pitch-black theme built for sunlight readability and minimal power draw on the trail.