# yamago: Hiking GPS & Maps — Hike Japan · Offline Topo Maps

> Hike Japan · Offline Topo Maps (iPhone/iPad app by Masahiro Iwamatsu.)

- Source: https://appshunter.io/ios/app/yamago-hiking-gps-and-maps/id6805208736 (this page in markdown: same URL + `.md`)
- Developer: [Masahiro Iwamatsu](https://appshunter.io/developer/1881530837)
- Category: Navigation, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 17.0 · 5 MB
- Languages: American English, Japanese, Korean, European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-08-31
- Data updated: 2026-11-08

## What is yamago?

yamago is a hiking GPS app for Japan's mountains, built around your Apple Watch.

YOUR APPLE WATCH BECOMES YOUR TRAIL INSTRUMENT
Page through your wrist while you walk:
• Heart rate — see whether your pace suits your body
• Blood oxygen — check how it changes as you climb
• Altitude and temperature — how high you are, how cold it is
• Map and location — without taking out your iPhone
• Start and stop recording — even with gloves on
If your heart rate rises sharply, your Watch taps your wrist.

MAPS THAT WORK WITHOUT A SIGNAL
Download topographic maps from the Geospatial Information Authority of Japan before you go. Your map and location keep showing even where there's no signal, on your iPhone and on your Apple Watch.

EVERY HIKE, RECORDED
Distance, elevation gain, moving time and breaks are recorded automatically. After your hike you get a route map and an elevation profile with your heart rate. Export your tracks as GPX, or import GPX files from other apps.

SAFER ON THE TRAIL
• A beam shows which way you're facing on the map
• Off-route warnings when you stray from your planned route
• A reminder to rest after two hours of walking without a break
• One tap opens the official bear sighting information for the prefecture you're in

PRIVATE BY DESIGN
No timeline, no followers. Your location and records are stored only on your device and in your own iCloud, and are never sent to third parties.

yamago supports hiking decisions and record keeping. It is not a medical device and is not intended for diagnosis or treatment.

Requires iPhone. The Apple Watch app works together with the iPhone app.

FREE FOR 30 DAYS, THEN PRO
Every feature is free for your first 30 days. From day 31, you need yamago PRO to start a new recording. You can always view your past records and export them as GPX, with or without PRO.
Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.

Terms of Use: https://strobofactory.github.io/yamago/terms.html
Privacy Policy: https://strobofactory.github.io/yamago/privacy-policy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| yamago PRO（月額） | $2.99 | per month |
| yamago PRO（年額） | $29.99 | per year |


## Is yamago safe?

Not enough ratings yet to assess yamago.

## Is yamago legit?

yamago: Hiking GPS & Maps appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for yamago is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.9.6 — 2026-11-06

English:
• Elevation gain is now counted with your iPhone's barometer for values closer to reality
• Fixed an issue where maps saved in advance from Settings → Manage offline maps were not used without signal. Saved maps are no longer removed when storage runs low
• Your planned GPX route is shown as a dotted line on the iPhone and Apple Watch maps. Apple Watch now also taps your wrist when you go off route
• Added a confirmation to End on Apple Watch. Starting from the watch on a day with a saved plan records it as that plan's mountain
• You can now export all records at once from Settings → Export records
• Calories are now estimated from your weight in Health
• Fixed the "›" and "‹" indicators on the recording screen, the map when you lose signal outside Japan, and other minor issues

### 1.9.5 — 2026-11-04

• When the readouts at the top of the recording screen (elevation, temperature, Watch battery and more) continue off-screen, a "›" now appears at the edge. Tap it to see the rest
• In Japan, when the signal is too weak for the map to load, the recording map now switches to the GSI topographic map automatically
• Minor bug fixes

### 1.9.4 — 2026-10-28

- Now available in Traditional Chinese, Korean and Spanish, including voice guidance.
- The Map tab now shows the current temperature before you start recording.
- More accurate records: fixed elevation gain sometimes stopping after an altitude correction, GPS jumps being added to distance, and time being off when you finish with the screen off.
- Off-route alerts now also work when you start from the Map tab or Apple Watch, and after a recording is restored.
- Blood oxygen alerts no longer trigger on old readings when you start recording.
- Fixed older hikes sometimes missing from the list when you have many records.
- Reduced battery use on Apple Watch.
- Other minor fixes.

### 1.9.3 — 2026-10-18

- New Map tab in Notebook: your routes and summit pins fill the map as you hike. Hikes with a photo show it as the pin. Topographic map by GSI Japan.
- Badges expanded from 12 to 58, including distance and climb in one hike, summit height, mountains visited, Hyakumeizan, seasons and streaks.
- Tapping LAST HIKE on Home now opens that hike's details.
- Find a Mountain now shows nearby and listed mountains first, with the distance from you.
- Fixed duplicate mountains in the nearby list. Corrected the locations of Mt. Jinba and Mt. Kagenobu, and added Mt. Kobotoke-Shiroyama.
- Fixed brief altitude spikes (such as during breaks) that could inflate elevation gain.

### 1.9.2 — 2026-10-12

- Importing a GPX file now brings in heart rate and temperature as well. Re-importing a GPX exported from yamago keeps your heart rate chart
- GPX export now includes temperature
- Minor bug fixes

## Apps similar to yamago

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [CALINT Logger(speed meter)](https://appshunter.io/ios/app/calint-loggerspeed-meter/id6780211359) | — | Free | Navigation |
| [OnTrails](https://appshunter.io/ios/app/ontrails/id6477734046) | 5.0 (1) | Free | Navigation |
| [登山駐車場 マップコード検索](https://appshunter.io/ios/app/id1642420774) | — | Free | Navigation |

## More apps by Masahiro Iwamatsu

- [江戸の刻](https://appshunter.io/ios/app/id6759902931)
- [おてつだいスター！](https://appshunter.io/ios/app/id6760336267)
- [シンプル ナンプレ](https://appshunter.io/ios/app/id6760528380)
- [Kokone - Voice Journal](https://appshunter.io/ios/app/kokone-voice-journal/id6800348133)
- [Ripplino: Calm Puzzles](https://appshunter.io/ios/app/ripplino-calm-puzzles/id6812376127)

All apps by Masahiro Iwamatsu: https://appshunter.io/developer/1881530837

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-08.*