Trailmark: GPS Location Logger

Trailmark: GPS Location Logger is your ultimate companion for tracking your routes, logging your coordinates, and mapping your trails — all while keeping your data 100% private and secure on your device.

Whether you are hiking, walking, or running, Trailmark offers a reliable and completely offline-first approach to logging your journeys. No login is required, and your personal data never leaves your phone.

Key Features:
Custom Interval Tracking: Log your GPS location seamlessly at custom intervals that suit your specific needs.
Built-in Map: View, mark, and manage your trails directly on an interactive built-in map.
Activity Context: Automatically recognizes your physical activity state (still, walking, or running) to provide rich context alongside your tracked routes.
Background Tracking: Keep logging your trail even when the app is minimized, with full transparency provided by a persistent notification.
Privacy First (Local Storage): Your trail data, GPS coordinates, activity data, and map data are saved exclusively on your device. We do not transmit or upload your location data to any external servers. What you track stays on your device.
Complete User Control: You retain full control over your information. Freely delete all your saved location data at any time directly through the app.