Japan Mt.100 vs OnTrails
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Japan Mt.100
Track your ascents of Japan's famous mountains. Record your climbs, add diary entries, and save photos of your journey. Export your data or back it up to iCloud.
- Climb and record ascents
- Confirm location near summit
- Climbing diary entries
- Save journey memories with photos
- Export climbing data (CSV)
- iCloud backup
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Japan Mt.100 is a app that climbing the Japan of hundred famous mountains. Climbing to registered mountains, you can record it and climb to arrive near the summit. ■Confirm location Map of the area around the current position is displayed. You can record climbing if it is within 100 meters(328 feet) of the top. ■Climbing diary When climbing to record can be entered in the diary. ■Memories of Maps displayed with photos stroke to return home from starting. Photograph is the target that was taken in time of up to return home from starting to have been saved in the camera roll. ■Export You can copy all of the climbing record data to send mail in CSV format, or to clip. ■iCloud You can back up the Climbing record data to iCloud for iPnone model change. ■Mountains that are housed □Hokkaido Mount Rishiri , Mount Rausu , Mount Shari , Akan Volcanic Complex , Daisetsuzan Volcanic Group , Mount Tomuraushi , Mount Tokachi , Mount Poroshiri , Mount Yōtei □Tohoku Mount Iwaki , Hakkōda , Mount Hachimantai , Mount Iwate , Mount Hayachine , Mount Chōkai , Mount Gassan , Mount Asahi , Mount Zaō , Mount Iide , Mount Azuma , Mount Adatara , Mount Bandai , Mount Aizu-Komagatake □North Kanto, Oze, Nikko Mount Nasu , Mount Tsukuba , Mount Hiuchigatake , Mount Shibutsu , Mount Hotaka , Mount Akagi , Mount Nantai , Mount Nikkō-Shirane , Mount Sukai □Joetsu, Shinetsu Mount Echigo-Komagatake , Mount Hiragatake , Mount Makihata , Mount Tanigawa , Mount Naeba , Mount Amakazari , Mount Myōkō , Mount Hiuchi , Mount Takatsuma , Mount Motoshirane , Mount Azumaya , Mount Asama □South Kanto, Chichibu, Tama Mount Ryōkami , Mount Kobushi , Mount Kinpu , Mount Mizugaki , Mount Kumotori , Mount Daibosatsu , Mount Tanzawa , Mount Fuji , Mount Amagi □Northern Alps Mount Shirouma , Mount Goryū , Mount Kashima Yarigatake , Mount Tsurugi , Mount Tate , Mount Yakushi , Mount Kurobegorō , Mount Kuro , Mount Washiba , Mount Yari , Mount Hotaka , Mount Jōnen , Mount Kasa , Mount Yake , Mount Norikura □Central Alps Utsukushigahara Highland , Mount Kirigamine , Mount Tateshina , Mount Aka , Mount Ontake , Mount Kisokoma , Mount Utsugi , Mount Ena □Southern Alps Mount Kaikoma , Mount Senjō , Mount Hōō , Mount Kita , Mount Aino , Mount Shiomi , Mount Warusawa , Mount Akaishi , Mount Hijiri , Mount Tekari □Hokuriku, Kinki, Chugoku, Shikoku Mount Haku , Mount Arashima , Mount Ibuki , Mount Ōdaigahara , Mount Ōmine , Daisen , Mount Tsurugi , Mount Ishizuchi □Kyushu Mount Kujū , Mount Sobo , Mount Aso , Mount Kirishima , Mount Kaimon , Mount Miya-no-ura ■Caution "Confirm location" and "Radar" will use the gps. Continued use of GPS running in the background, will be reduced dramatically battery life.
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: Japan Mt.100 at none against OnTrails's 1. Japan Mt.100 also leads on ads (none vs shown) and iOS requirement (7.1 vs 13.0). OnTrails's advantage is update cadence (every 4 days vs monthly). On price and device support 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. Japan Mt.100 asks for nothing beyond the download.
Japan Mt.100 ships an update monthly, OnTrails every 4 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | Japan Mt.100 | OnTrails |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 7.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 32 MB | 58 MB |
| Age rating | 4+ | 12+ |
| Developer | MAKOTO SASAKI | ONTRAILS |
Customer experience
Japan Mt.100
OnTrails
In-app purchases
Japan Mt.100
No in-app purchases
OnTrails
- 1 Month Plan$0.991 Month







