# Grid Ref CH1903 — Swiss Coordinate System

> Locates and shares precise Swiss Coordinate System (CH1903) grid references. (iPhone/iPad app by Mike Irving.)

- Source: https://appshunter.io/ios/app/grid-ref-ch1903/id1146848398 (this page in markdown: same URL + `.md`)
- Developer: [Mike Irving](https://appshunter.io/developer/393933736)
- Category: Navigation, Travel
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 11.0 · 5 MB
- Languages: American English
- Released: 2016-09-18
- Data updated: 2026-08-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/grid-ref-ch1903/id1146848398/reviews.md

## What is Grid Ref CH1903?

For use with mapping / topology using the Swiss Coordinate System (CH1903/LV03/SwissGrid)

Find out where you are on the CH1903 system, immediately, and accurately.

App Provides: Swiss Grid Ref, and WGS84 Latitude and Longitude values.

The Accuracy of Readings, as indicated by your device, will also be shown. 

Share your Location via Text, Email, Tweet etc, or Copy to the Clipboard. (Sharing options and services will vary, depending on the device setup).

Though aimed at use in Switzerland, the app will operate internationally. App includes a graphical guide to the Swiss Coordinate System.

Ideally suited for use by walkers, hikers and outdoor sports enthusiasts. It is recommended that you should always carry a map and physical compass when on outdoor pursuits.

For best results, use in an open space, where possible, away from trees, buildings and sources of interference.

For continued on-screen display of Grid Reference information, please set your Auto-Lock preference in the 'Settings' App. (Settings -> General -> Auto-Lock) 

Compatible with handsets that feature GPS hardware. You may have to grant the app permission to use this information.

--

Ad Supported.

## Key features

- Swiss Grid Reference display
- WGS84 Latitude and Longitude
- Location accuracy readings
- Share location via text/email
- Operates internationally
- Graphical guide to Swiss Coordinate System

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Go Ad Free | $0.99 | one-time |



## Frequently asked questions about Grid Ref CH1903

### What is Grid Ref CH1903?

Grid Ref CH1903 is a navigation app designed to help users find their location using the Swiss Coordinate System (CH1903/LV03/SwissGrid). It provides your Swiss Grid Reference and WGS84 Latitude and Longitude.

### Is Grid Ref CH1903 free to use?

Yes, Grid Ref CH1903 is available for free. The app is supported by advertisements, which helps fund its development and maintenance.

### What devices is Grid Ref CH1903 compatible with?

Grid Ref CH1903 is compatible with iPhones and iPods that feature GPS hardware. You may need to grant the app permission to access your device's location information.

### How accurate are the location readings in Grid Ref CH1903?

The app displays the accuracy of readings as indicated by your device's GPS hardware. For best results, it is recommended to use the app in an open space, away from potential sources of interference.

### Can Grid Ref CH1903 be used outside of Switzerland?

While ideally suited for use in Switzerland, the app will operate internationally. It also includes a graphical guide to the Swiss Coordinate System for educational purposes.

### How often is Grid Ref CH1903 updated?

The latest version of Grid Ref CH1903 is 2.3, which was last updated on December 5, 2019. While updates may not be frequent, the app is stable and functional for its intended purpose.

### What is the age rating for Grid Ref CH1903?

Grid Ref CH1903 has an age rating of 4+, making it suitable for users of all ages. It does not contain any content that would be inappropriate for children.

### Does Grid Ref CH1903 have ads?

Yes, Grid Ref CH1903 is ad-supported. Advertisements are integrated into the app to allow it to be offered to users for free.

## Version history (last 4 releases)

### 2.3 — 2019-12-05

- Updated for iPhone X / XS / XS Max / XR / 11 / 11 Pro etc.

- In App Purchase to remove ads

### 2.2.1 — 2018-03-29

Under the hood improvements for iOS 11

### 2.2 — 2017-04-12

'Tweet Location' now 'Share Location'.. giving you the choice of where to share your Map Location.

### 2.1 — 2016-09-14

No release notes.

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Raccoon - Geocaching Tool](https://appshunter.io/ios/app/raccoon-geocaching-tool/id424398764) | 5.0 (1) | Free | Navigation |

## More apps by Mike Irving

- [Shot Time - Pool Timer](https://appshunter.io/ios/app/shot-time-pool-timer/id461362566)
- [GB Grid Ref Compass](https://appshunter.io/ios/app/gb-grid-ref-compass/id515935554)
- [Irish Grid Ref Compass](https://appshunter.io/ios/app/irish-grid-ref-compass/id536594536)
- [UTM Grid Ref Compass](https://appshunter.io/ios/app/utm-grid-ref-compass/id563242031)
- [Photo Tap](https://appshunter.io/ios/app/photo-tap/id645900990)
- [Grid Ref UTM](https://appshunter.io/ios/app/grid-ref-utm/id962314746)

All apps by Mike Irving: https://appshunter.io/developer/393933736

## Related topics

[swiss grid coordinates tool](https://appshunter.io/ios/topics/swiss-grid-coordinates-tool)

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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 2026-08-18.*