# GB Grid Converter vs Grid Ref UTM

The clearest difference is rating: GB Grid Converter at 5.0 against Grid Ref UTM's 4.6. GB Grid Converter also leads on update cadence (every 2 months vs every 10 months). Grid Ref UTM's advantage is ratings volume (183 vs 1) and iOS requirement (11.0 vs 16.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. GB Grid Converter sells 1 one-off in-app purchase and Grid Ref UTM sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

GB Grid Converter holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Grid Ref UTM has 183 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of GB Grid Converter's written reviews are positive against 74% of Grid Ref UTM's.

GB Grid Converter ships an update every 2 months, Grid Ref UTM every 10 months. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GB Grid Converter | Grid Ref UTM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gb-grid-converter/id382369923/reviews)** | [4.6 (183 ratings)](https://appshunter.io/ios/app/grid-ref-utm/id962314746/reviews) |
| Number of ratings | 1 | **183** |
| Positive reviews | **75.9% of reviews** | 73.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 5 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Geospike Pty Ltd](https://appshunter.io/developer/500622151) | [Mike Irving](https://appshunter.io/developer/393933736) |

## What reviewers say

### GB Grid Converter

[App page](https://appshunter.io/ios/app/gb-grid-converter/id382369923)

This app converts British National Grid References to Latitude/Longitude coordinates and vice-versa. It supports both OSGB36 and WGS84 datums. You can view converted coordinates in Maps, send them to other apps, or copy them to your clipboard.

**Highlights:** Convert British National Grid to Lat/Long, Convert Lat/Long to British National Grid, Supports OSGB36 and WGS84, View coordinates in Maps app, Send coordinates to other apps, Copy coordinates to clipboard, Fuzzy parsing for input

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GB Grid Converter Premium | $10.00 | one-time |


### Grid Ref UTM

[App page](https://appshunter.io/ios/app/grid-ref-utm/id962314746)

Pinpoint your exact map reference location globally using the Universal Transverse Mercator (UTM) system. Displays UTM grid references, hemisphere, and WGS84 latitude/longitude. Share your location via Twitter. Ideal for outdoor enthusiasts.

**Highlights:** UTM Grid Reference display, WGS84 Latitude and Longitude, Hemisphere information, Location sharing via Twitter, Accuracy of readings indicator, International operation with USA UTM Zones guide

**Features:** Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is GB Grid Converter free?

GB Grid Converter is free to download, with in-app purchases available.

### Is Grid Ref UTM free?

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

### Which has better reviews, GB Grid Converter or Grid Ref UTM?

GB Grid Converter is rated higher. GB Grid Converter averages 5.0 out of 5 from 1 ratings, while Grid Ref UTM averages 4.6 from 183 ratings.

### Do GB Grid Converter or Grid Ref UTM have ads?

Neither GB Grid Converter nor Grid Ref UTM shows ads.

### Which is updated more often, GB Grid Converter or Grid Ref UTM?

GB Grid Converter ships an update every 2 months, and Grid Ref UTM every 10 months. Most recently, GB Grid Converter was updated on September 29, 2026 and Grid Ref UTM on October 7, 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.*