Stack My Trails

Stack My Trails reads your workout routes from Apple Health and stacks them on a single map, creating a beautiful heatmap-like visualization of your training routes. You can also import and export GPX files, or draw your own GPS art directly on the map by placing waypoints.

See all your runs, walks, hikes, and cycling routes layered together. Discover your favorite paths, explore patterns in your training, and turn your routes into art.

Pay once, own it forever. No subscriptions, no accounts, no cloud. Your data stays on your device.

KEY FEATURES

- Import workout routes from Apple Health with one tap
- Export and import routes as GPX files
- Export and import your trail data as a backup file
- Record new trails directly in the app — GPS tracking with live route display
- Recorded workouts are saved to Apple Health automatically
- Draw custom routes on the map — place waypoints and get real walking directions between them
- Stack up to 500 routes on a single map view
- Create stunning poster images with 9 artistic filters
- Vignette quick-toggle: cycle off / medium / full in the poster toolbar
- Adjust trail thickness, glow, labels, and decorative frames
- Frame and rotate your poster for the perfect composition
- Save posters to your photo library or share them
- Browse all your trails in a scrollable list with preview maps
- Filter by area, date range, and activity type
- Show your current location on the trail map to discover new routes and unvisited directions
- Built-in GPS spoofing filter for accurate route display in affected areas
- Full dark mode support
- No account, no subscription, no cloud

YOUR DATA, YOUR DEVICE

Stack My Trails stores everything locally on your device. No accounts, no servers, no tracking. Your workout data is yours. The only network requests the app makes are to Apple's geocoding service during import to convert route coordinates into place names, and to Apple's directions service when drawing routes on the map.

POSTER THEMES

- Noir: Dark background with glowing trails
- Architect: Navy blue tones with cool light blue paths
- Artistic: Pigment-ink style with curated paper palette
- Clean: Pure map view with subtle trail overlay
- Gradient: Trails rendered as flowing color gradients
- Pixel: Retro pixel-art grid style with editable color palette
- Risograph: Halftone print style with authentic ink misregistration offset
- Voronoi: Geometric cell diagram
- Halftone: Dot-matrix print style
- Glyph: Typographic ASCII-art style

REQUIREMENTS

- iPhone with Apple Health workout route data
- iOS 16.0 or later
- Workouts must have GPS route data recorded (from Apple Watch or a GPS-enabled workout app)
- Location access is used for trail recording and optionally to show your position on the map