# GPS OS Grid Reference vs GPSOS

The clearest difference is in-app purchases: GPSOS at none against GPS OS Grid Reference's 2. GPSOS also leads on iOS requirement (15.6 vs 18.0). On price, ads and device support 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. GPSOS asks for nothing beyond the download.

## The numbers

| Metric | GPS OS Grid Reference | GPSOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (17 ratings)](https://appshunter.io/ios/app/gps-os-grid-reference/id993436655/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 89.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 80 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tomstrails.com](https://appshunter.io/developer/425642318) | [Tamilarasan Kannan](https://appshunter.io/developer/1500116258) |

## 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


### GPSOS

[App page](https://appshunter.io/ios/app/gpsos/id6760390098)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GPS OS Grid Reference free?

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

### Is GPSOS free?

GPSOS is free to download, with no in-app purchases.

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

Neither GPS OS Grid Reference nor GPSOS shows ads.

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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.*