# GPS OS Grid Reference vs GPS Coordinates

The clearest difference is rating: GPS OS Grid Reference at 4.4 against GPS Coordinates's 3.5. GPS OS Grid Reference also leads on ads (none vs shown). GPS Coordinates's advantage is iOS requirement (12.0 vs 18.0). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. GPS OS Grid Reference sells 2 in-app purchases, starting at $5.99 per year and GPS Coordinates sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

GPS OS Grid Reference holds the better App Store score, 4.4 against 3.5. Both are backed by a comparable volume of ratings — 17 and 8 respectively.

GPS OS Grid Reference ships an update every 3 months, GPS Coordinates every 2 months. The most recent releases landed on October 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | GPS OS Grid Reference | GPS Coordinates |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (17 ratings)](https://appshunter.io/ios/app/gps-os-grid-reference/id993436655/reviews)** | [3.5 (8 ratings)](https://appshunter.io/ios/app/gps-coordinates-tools/id1614071149/reviews) |
| Number of ratings | **17** | 8 |
| Positive reviews | 89.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 22 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tomstrails.com](https://appshunter.io/developer/425642318) | [ErxiangHeyi Information](https://appshunter.io/developer/1735695526) |

## What reviewers say

### GPS OS Grid Reference

[App page](https://appshunter.io/ios/app/gps-os-grid-reference/id993436655)

This app accurately pinpoints your location on Ordnance Survey maps for Great Britain and Ireland, even without a phone signal. It offers precise grid references, waypoint creation, and navigation features. The display is designed for clarity in all lighting conditions, and it optimizes battery usage.

**Highlights:** Offline map location, Accurate grid references, Waypoint creation and management, High-contrast display, Battery optimization, Share waypoints

**Features:** Family Sharing, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $5.99 | per year |
| Feature Pack - Compass & sharing features. | Free | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🎯 Accurate grid references
- 🚀 Fast and quick updates
- 💡 Works without phone signal
- 🗺️ Useful for navigation and backup

**What reviewers complain about**

- 🐛 Blurry satellite maps
- 🧭 Compass not accurate
- 📉 Accuracy dropped recently
- 🗺️ No map data included
- 🚫 Cannot search locations

**Reported bugs**

- Waypoint finder satellite view is blurry
- Compass is not accurate
- Accuracy has dropped recently
- Location services permanently dimmed off (iOS)
- App does not work for users not in England

**Requested features**

- Add map data and search functionality
- Improve satellite map clarity
- Add ability to view location on a map
- Enable navigation from point to point
- Add Apple Watch equivalent app


### GPS Coordinates

[App page](https://appshunter.io/ios/app/gps-coordinates-tools/id1614071149)

Easily find latitude, longitude, address, and altitude for any location on the map. Supports multiple coordinate systems and route planning with distance calculation. Save favorite spots and share map views.

**Highlights:** Get location details by tapping the map, Plan routes with multiple points, Save favorite locations with iCloud backup, Support for WGS-84, GCJ-02, and BD-09 coordinate systems, Search for places, Traffic and satellite map layers

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LifeTime | $6.99 | one-time |


## Frequently asked questions

### Is GPS OS Grid Reference free?

GPS OS Grid Reference is free to download, with in-app purchases available.

### Is GPS Coordinates free?

GPS Coordinates is free to download, with in-app purchases available.

### Which has better reviews, GPS OS Grid Reference or GPS Coordinates?

GPS OS Grid Reference is rated higher. GPS OS Grid Reference averages 4.4 out of 5 from 17 ratings, while GPS Coordinates averages 3.5 from 8 ratings.

### Do GPS OS Grid Reference or GPS Coordinates have ads?

GPS Coordinates shows ads; GPS OS Grid Reference does not.

### Which is updated more often, GPS OS Grid Reference or GPS Coordinates?

GPS OS Grid Reference ships an update every 3 months, and GPS Coordinates every 2 months. Most recently, GPS OS Grid Reference was updated on October 9, 2026 and GPS Coordinates on September 18, 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.*