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Ollaga app · iPhone · Android

Hike Korea's mountains on official trails. Run and ride anywhere.

Ollaga records your hikes, runs and rides with GPS. In South Korea it recommends only official Korea National Park Service and Korea Forest Service trails.

Get it on the App StoreGet it on Google Play

Free · No ads · Offline maps included (Korea)

Recording a hike with GPS — route and distance on a topo map
Finished hike on Dobongsan — 6.9 km, 447 m gain, 1:54, elevation chart

Three sports, one app

  • Hiking

    Route, distance, elevation gain and time. Summits in Korea count only when your track passes within 100 m.

  • Running

    Distance, pace, per-km splits and heart-rate zones. Keeps recording with the screen off.

  • Cycling

    Distance, speed and elevation charts. Korea's cross-country bike paths on the map.

Map of official hiking courses on Bukhansan Mountain

Plan on official trails

Search Korea's 100 Famous Mountains — Bukhansan, Seoraksan, Jirisan, Hallasan and more. Only official national-park and forest-service courses are recommended.

  • Distance, estimated time, elevation gain and difficulty for every course
  • Mountain weather, wind, sunrise and sunset (Korea Meteorological Administration)
  • National-park trail closures checked hourly
Replaying a hike route on 3D terrain

Relive every climb

Replay your route on satellite imagery and 3D terrain, and share it as a short video. Your activities add up to weekly, monthly and yearly stats.

  • Per-km splits, heart-rate zones and elevation charts
  • Peaks you've climbed and your 100 Famous Mountains progress
  • Export any activity as GPX

Where it works

Anywhere

  • GPS recording, even with the screen off
  • Stats, splits and heart-rate zones
  • Watch and device sync
  • 3D replays and sharing

South Korea only

  • Hiking map, official trails and courses
  • Mountain weather and trail closures
  • Voice guidance (Korean only)
  • Summit verification

Outside Korea the map shows satellite imagery only. Mountain and peak names are translated; map labels are mostly in Korean.

Watch & devices

  • Record directly on Apple Watch or Wear OS
  • Import workouts from Apple Health
  • Auto-import from Suunto and Wahoo
  • Bluetooth heart-rate monitors

Available in English, 한국어, 日本語, 简体中文, 繁體中文 and Русский

Ollaga is an independent app by SinsaBridge, not affiliated with the Korea National Park Service or Korea Forest Service; it uses their public data.