On Trail — AI Mountain Guide

In-app purchases
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
Users Interact, Shares Location
Learn more
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About this app

On Trail is built for mountain people — from weekend hikers to seasoned ski tourers. It combines offline maps, AI-powered route planning, mountain weather forecasts and an outdoor community.

🤖 AI ASSISTANT — CHATAI
Talk to AI about mountains. Ask by voice or text:
• "Plan a route from Kuźnice to Kasprowy Wierch"
• "What's the weather tomorrow on Rysy?"
• "Which peaks in the Tatras haven't I visited yet?"
• "What's interesting near the mountain hut?"
ChatAI uses 24 specialized tools — plans routes, checks weather, trail conditions, avalanche danger and much more. You can also send a photo and ask AI to identify the peak.

🗺️ OFFLINE MAPS
Download maps for 21 mountain regions and use without internet:
• Tatra Mountains (Polish & Slovak), Beskids, Pieniny, Karkonosze, Bieszczady
• Dolomites, Lake Garda, Stelvio, Nockberge (Austria)
• Yosemite, Yellowstone, Grand Canyon, Zion, Moab
Trails, peaks, mountain huts, saddles, parking, springs — all offline.

🏔️ ROUTE PLANNING
• Plan routes by voice with AI or manually add waypoints
• Elevation profile, SAC difficulty, surface type, estimated time
• Seasonal trail closures info (conditional access)
• Segment details: via ferrata, fords, trail markings
• Save favorite routes and share with friends

🌦️ SUMMIT WEATHER
• Meteoblue forecast accounting for elevation — not city weather!
• Temperature, wind, precipitation, snow — hourly for 3 days
• Storm and wind alerts during activity
• Sunset warning

⚠️ SAFETY
• EAWS avalanche warnings (scale 1–5)
• Mountain cameras (e.g. TOPR rescue service)
• Emergency numbers for mountain rescue
• Real-time location sharing — friends see where you are

📊 ACTIVITY TRACKING
• Hiking, trail run, ski touring, MTB, gravel, bikepacking & 15+ types
• Distance, elevation, speed, pace, altitude, heart rate (BLE), calories
• Route navigation with voice announcements on headphones
• GPX import

📸 COMMUNITY
• Share photos and activities with friends
• Reactions, comments, push notifications
• Photo contest — win premium packages
• Stats: distance, elevation, visited places

🎨 EXTRA FEATURES
• 3D maps with terrain model
• Generate your own offline maps (Custom Maps)
• Sunrise/sunset, golden hour for photographers
• Compass, barometer, BLE heart rate sensor
• Weather and AQI home screen widgets

💎 PREMIUM PACKAGES
Try free for 3 days! Packages: SPORT (weather, alerts, voice), EXPLORER (AI, 3D maps, custom maps), HEALTH (heart rate, calories, hydration).

Crafted with mountain passion. From the Tatras to Yosemite.
Offline maps, AI voice route planning, summit weather. Tatras, Alps & more.
Updated on
Jul 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location, Personal info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

New app screens navigation based on bottom navigation bar.