# GSI Map++ — Japan maps

> Displays Japanese geospatial maps with measurement and location bookmarking features. (iPhone/iPad app by AOBO Co.,Ltd.)

- Source: https://appshunter.io/ios/app/gsi-map-plus-plus/id994054184 (this page in markdown: same URL + `.md`)
- Developer: [AOBO Co.,Ltd](https://appshunter.io/developer/310846199)
- Category: Navigation, Travel
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 4 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2015-05-28
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/gsi-map-plus-plus/id994054184/reviews.md

## What is GSI Map++?

This is an application to display maps provided by Geospatial Information Authority of Japan.

Please view the following link if you want to know more about the GSI map.
http://www.gsi.go.jp/kikakuchousei/kikakuchousei40182.html

Features:

1, Can display almost all the map types published by Geospatial Information Authority of Japan.

2, Can invoke the directions function of Apple Map or Google Map in this application.

3, Can switch to OpenStreetMap for your convenience.

4, Can measure distance and area space, please select the corresponding function and tap the red pin to try.

5, Can display the location and elevation information on detail screen, also can add memo or select a photo(if photos are available on device). You can delete selected photo by long press action.

6, Can add a location point to bookmark on detail screen.
7, Background map option, changing map transparency.
8, Save history on trace mode.
9, Save tile data to local.

Notice:

1, The internet environment is a must.
2, Sometimes the display of map become slowly, because of the status of internet environment.

Disclaimer:
1, The developer take no responsibility for any result when user use this application.
2, The map displayed in this application depends on service provided by other organization, this application will out of work if this kind of service was stopped.

## Key features

- Display GSI maps
- Integrate with Apple/Google Maps
- Switch to OpenStreetMap
- Measure distance and area
- Display location and elevation
- Add location bookmarks
- Save tile data locally

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 広告の削除（１年間） | $3.99 | one-time |
| 広告の削除（6ヶ月間） | $2.99 | one-time |


## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/gsi-map-plus-plus/id994054184/reviews.md

### 4/5 — なかなか良いです。

*2024-11-21*

様々な種類の地図があり、なかなか良いと思いました。

### 5/5 — 地理院地図が使えて良い

*2024-05-06*

映らない、画面が強制的に現在地に戻るなどのバグもあるが、使い勝手が良いのでこれからも使いたいと思う

### 4/5 — Useful maps

*2023-02-19*

Level of detail good for Japan.  GSI view has English option, but dialogue descriptions for other options in Japanese, so a bit hit and miss.  OSM (open street maps) view includes cycling (as available on Cycling Streets and other apps) and transport, which shows railways very clearly (station names in Roman letters), but having JR and other lines in different colours would help.  The top RH icon gives useful options including cancelling ads.  This is not essential as ads only flash on after a few searches.  Beware cancelling payment only works for one device.

### 3/5 — 頑張ってほしい

*2020-09-05*

凡例があると良いのですが。

### 3/5 — 落ちる

*2018-01-08*

写真に保存すると落ちるようになりました。
改善されたら星５つでもいいです！

### 4/5 — いいアプリだけど…

*2017-03-18*

時々急にアプリが落ちます

### 1/5 — 広告が多い

*2016-12-30*

地図を見る度に広告のムービーを見せられるのは結構なストレス。

### 1/5 — メモリ管理がダメ

*2016-11-29*

スクロールさせてるとすぐに memory is used up. となり地図が消えてしまう。
国土地理院地図をみるのであれば、電子国土Webで十分。

### 2/5 — 頑張ってください！

*2016-09-28*

地形図が使えるのはとても良いのですが、iPhoneとiPadで同じブックマークを共有出来ると使い勝手が格段に良くなると思います。例えばブックマークをicloudへ保存出来る様になるとか。ピンの色も何色か選べるとすごく良いです。写真はあと2枚は追加して保存出来ると良いですね。

### 4/5 — とてもいいので…

*2016-08-19*

有料でいいので広告のないバージョンをお願いします。

## Frequently asked questions about GSI Map++

### What map data does GSI Map++ use?

GSI Map++ displays maps provided by the Geospatial Information Authority of Japan. It can show almost all map types published by this authority.

### Can I get directions using GSI Map++?

Yes, GSI Map++ can invoke the directions function of Apple Map or Google Map directly from within the application.

### Does GSI Map++ work offline?

No, an internet environment is a must for GSI Map++ to function. Map display may become slow depending on the internet connection status.

### How do I measure distance or area in GSI Map++?

You can measure distance and area space by selecting the corresponding function and tapping the red pin on the map.

### Can I save locations in GSI Map++?

Yes, you can add a location point to a bookmark on the detail screen for saved locations.

### Does GSI Map++ have ads?

Yes, GSI Map++ contains advertisements. It also offers in-app purchases.

### What devices is GSI Map++ compatible with?

GSI Map++ is compatible with iPhone, iPad, and iPod devices.

### How often is GSI Map++ updated?

The latest version, 3.20, was last updated on April 22, 2025. The app was initially released on May 28, 2015.

## Version history (last 5 releases)

### 3.20 — 2025-04-22

Fixed bugs.

### 3.19 — 2025-04-21

Updated to latest iOS.

### 3.18 — 2023-11-05

Fixed bugs and supported to latest OS.

### 3.17 — 2023-11-02

Support latest OS and bug fixed.

### 3.16 — 2021-08-24

Changed to display the saved map data preferentially. If you save the map data on your device in a Wi-Fi environment, it will be displayed faster than before in any environment when you use it next time.

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All apps by AOBO Co.,Ltd: https://appshunter.io/developer/310846199

## Related topics

[caltopo map](https://appshunter.io/ios/topics/caltopo-map)

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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 2026-08-30.*