# Grid Ref CH1903 vs Coordinates Pro

The clearest difference is price: Grid Ref CH1903 at Free against Coordinates Pro's $0.99. Grid Ref CH1903 also leads on update cadence (every 12 months vs every 49 months) and iOS requirement (11.0 vs 15.6). Coordinates Pro's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Grid Ref CH1903 is free to download; Coordinates Pro costs $0.99 up front. Grid Ref CH1903 sells 1 one-off in-app purchase. Coordinates Pro asks for nothing beyond the download.

Grid Ref CH1903 ships an update every 12 months, Coordinates Pro every 49 months. The most recent releases landed on September 22, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Grid Ref CH1903 | Coordinates Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/grid-ref-ch1903/id1146848398/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 49 months |
| Monetization | Free | — |
| Size | 5 MB | 1 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mike Irving](https://appshunter.io/developer/393933736) | [appdoctors UG](https://appshunter.io/developer/961029450) |

## What reviewers say

### Grid Ref CH1903

[App page](https://appshunter.io/ios/app/grid-ref-ch1903/id1146848398)

This app helps you find your precise location within the Swiss Coordinate System (CH1903). It displays your Swiss Grid Reference and WGS84 Latitude/Longitude, along with accuracy readings. Share your location easily via text or email.

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

**Features:** Vision Pro support

**In-app purchases (1)**

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


### Coordinates Pro

[App page](https://appshunter.io/ios/app/coordinates-pro/id1245148768)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Grid Ref CH1903 free?

Grid Ref CH1903 is free to download, with in-app purchases available.

### Is Coordinates Pro free?

Coordinates Pro costs $0.99, with no in-app purchases.

### Do Grid Ref CH1903 or Coordinates Pro have ads?

Neither Grid Ref CH1903 nor Coordinates Pro shows ads.

### Which is updated more often, Grid Ref CH1903 or Coordinates Pro?

Grid Ref CH1903 ships an update every 12 months, and Coordinates Pro every 49 months. Most recently, Grid Ref CH1903 was updated on September 22, 2026 and Coordinates Pro on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*