Tour du Mont-Blanc – GR® TMB

The essential app for the Tour du Mont-Blanc The Tour du Mont-Blanc is one of the world's most iconic treks: 167 km, 11,733 m of elevation gain, crossing France, Switzerland and Italy. This app guides you from your first step to your last mountain hut. 🗺️ OFFLINE MAP (Premium) Full topographic map of the TMB area, available without an internet connection. Perfect for remote zones, and built to save your battery. GPS only requests your location once at startup — no continuous tracking. 📍 ROUTE & VARIANTS The official TMB route is displayed in red, with 7 coloured variants: Fenêtre d'Arpette (+4 km / +350 m) Tête Bernarda (+3 km / +200 m) Vallorcine (+3 km / +200 m) Les Grands (-3 km / -100 m) Col de Tricot (+6 km / +550 m) Col des Fours (+2 km / +300 m) Le Tour (+4 km / +300 m) Toggle each variant on or off. Total stats (distance, elevation) update instantly. 📊 INTERACTIVE ELEVATION PROFILE View the full elevation chart for the route. Tap any point on the chart to locate it on the map, or tap the map to highlight the corresponding altitude on the chart. 📅 STAGE PLANNER Set up your trek in seconds: duration (5 to 11 days), accommodation type (hut, bivouac or mixed), direction (classic counter-clockwise or clockwise). The app generates your stages with a mini-map and service info (camping, restaurant, grocery...). ☁️ MOUNTAIN WEATHER 5-day forecasts for 5 TMB locations: Chamonix, Courmayeur, Champex-Lac, Les Contamines and Trient. Data is cached — check the weather even without internet, with a last-updated indicator. 🌐 MULTILINGUAL Available in French, English, German, Italian and Polish. Change language directly in Settings. ⭐ PREMIUM — lifetime One payment, lifetime access: Full offline map of the entire TMB zone Zero ads Battery-optimised GPS Real-time location on the map