あの山へ! vs OnTrails
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
あの山へ!
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”あの山へ!”は、ハイキングをサポートするシンプルなアプリです。 ハイキング中に「あとどれぐらいかな?」と思った時に、目的地までの高さと距離をすぐに教えてくれます。 AppleWatchがあればiPhoneを取り出す必要すらありません! 使い方は、山を検索して選ぶだけ。 選んだら、目的地までの距離や標高差、コンパスが画面上に表示されます。地図表示も可能です。 バス停や山小屋などは自分で登録もできます。 山にいると、携帯電話の電波が途切れてしまいがちですが、”あの山へ!”なら、場所のデータを保存しておけるから、オフラインでも大丈夫。 検索結果も次に検索するまでずっと残ります。
OnTrails
Navigate remote trails with confidence using this offline GPS app. Download maps in advance for reliable navigation without cell service, track your routes, and receive directional guidance to your destination. Ideal for hikers and trekkers in any environment.
- Offline map downloads
- Lock-on navigation with direction and distance
- Automatic route recording
- Real-time coordinate, elevation, and speed display
- GPX file export
- Multiple map types
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An offline hiking GPS app ideal for preventing getting lost and recording your tracks. Accurately displays your location even in remote mountains, with lock-on navigation showing direction and distance to your destination. Automatically records your hiking route. ■ Peace of Mind Without Signal! Full Offline Support No cell service is the norm in mountainous areas. Download maps to OnTrails in advance, and you can use GPS navigation even without signal. ・Bulk map download feature (prepare in advance via WiFi) ・GPS works via satellite, so it operates even outside cell coverage ・Real-time display of current coordinates, elevation, and speed ・Tracking (route recording) also works offline ■ 401 Mountains Included 【Mountains of Japan】 100 Famous Japanese Mountains (Hyakumeizan) - 100 peaks 200 Famous Japanese Mountains (Nihyakumeizan) - 100 peaks 300 Famous Japanese Mountains (Sanbyakumeizan) - 101 peaks 【Mountains of the World】 100 famous peaks from around the world Including Everest, K2, Mont Blanc, Kilimanjaro, and more Covers the Himalayas, Alps, Andes, Rockies, and regions worldwide ■ Lock-On Feature - Navigate with Confidence Simply select your target mountain or marker and "Lock On." ・Real-time distance display from your current location ・Large arrow showing the direction to go ・Voice guidance such as "500m remaining, northeast direction" ・Intuitive navigation even without knowing how to use a compass ・GPS alone shows direction and distance without cell service, preventing you from getting lost ■ Multiple Map Types Available Compatible with maps worldwide. Can be used for overseas trekking. ・Google Maps ・Geospatial Information Authority of Japan (GSI) Maps ・OpenStreetMap ■ GPS Tracking (Route Recording) Automatically records your hiking route as a red line on the map. ・Recording works offline ・Save and export as GPX files ・View and share routes on other apps or PC ■ Other Useful Features Real-time display of current coordinates, elevation, speed, and bearing. ・Custom marker registration (water sources, trail junctions, hazardous areas, etc.) ・Mountain list search and sort (by name, elevation, distance) ・Regional filter function ・Emergency coordinate copy and share function ■ Recommended For ・Those heading to areas without cell coverage ・Beginner hikers worried about getting lost ・Those aiming to conquer all 100 Famous Japanese Mountains ・Those challenging overseas trekking ・Those wanting a backup tool for paper maps and compass ・Those wanting to easily record hiking logs on their smartphone 【Please Note】 Advance map download is required for offline use. GPS accuracy varies depending on device and environment. This app is an auxiliary tool for hiking. Please always carry paper maps, a compass, and sufficient equipment. Submitting a hiking plan and safety management are your own responsibility. Subscription Please refer to the following for terms and conditions regarding subscription use: Privacy Policy: https://www.ontrails.jp/app/privacy-policy/ontrails/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: あの山へ! at none against OnTrails's 1. OnTrails's advantage is update cadence (every 4 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OnTrails sells 1 in-app purchase, starting at $0.99 per month. あの山へ! asks for nothing beyond the download.
あの山へ! ships an update every 2 months, OnTrails every 4 days. The most recent releases landed on September 13, 2026 and September 18, 2026 respectively.
| Parameter | あの山へ! | OnTrails |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 58 MB |
| Age rating | 4+ | 12+ |
| Developer | Masaki Fujimoto | ONTRAILS |
Customer experience
あの山へ!
OnTrails
In-app purchases
あの山へ!
No in-app purchases
OnTrails
- 1 Month Plan$0.991 Month







