# GB Grid Converter vs Mgrs & Utm Map

The clearest difference is ads: GB Grid Converter at none against Mgrs & Utm Map's shown. GB Grid Converter also leads on rating (5.0 vs 4.6) and review sentiment (76% vs 54%). Mgrs & Utm Map's advantage is ratings volume (2.6K vs 1) and chart position (#180 vs unranked). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. GB Grid Converter sells 1 one-off in-app purchase and Mgrs & Utm Map 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: Mgrs & Utm Map has 2.6K 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 54% of Mgrs & Utm Map's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | GB Grid Converter | Mgrs & Utm Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gb-grid-converter/id382369923/reviews)** | [4.6 (2.6K ratings)](https://appshunter.io/ios/app/mgrs-and-utm-map/id1439891984/reviews) |
| Number of ratings | 1 | **2.6K** |
| Positive reviews | **75.9% of reviews** | 54.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#180** |
| Size | 10 MB | 55 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Geospike Pty Ltd](https://appshunter.io/developer/500622151) | [Vahid Cataltas](https://appshunter.io/developer/1439891983) |

## 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 |

**What reviewers like**

- 👍 Brilliant app overall
- 📍 Accurate grid references
- 🗺️ Shows location on map
- 🚀 Navigates to grid reference
- 💡 Instant and accurate grid reference

**What reviewers complain about**

- 🐛 Drop pin no longer gives TQ
- 🔊 No sound when driving
- 📉 Accuracy issues (can't get to 5m)
- 🐛 Clunky and inaccurate interface
- 💥 Crashes iPad Air

**Reported bugs**

- Drop pin does not give TQ anymore unless at location
- No sound when driving to a grid reference
- App crashes when asking for directions on iPad mini
- Latest update has issues, doesn't work on iPhone or iPad
- New marker pins on map not accurate, same grid ref for all pins

**Requested features**

- Direct reference to What 3 Words
- Watch compatibility
- Convert WGS84 to OS grid
- Increase accuracy by another decimal place


### Mgrs & Utm Map

[App page](https://appshunter.io/ios/app/mgrs-and-utm-map/id1439891984)

**Currently charting:** #180 Top Grossing · Navigation (US App Store)

Navigate the outdoors with precision using GPS and multiple coordinate systems. Ideal for military, hikers, and outdoor enthusiasts, it displays your accurate position on various map layers and supports KML import/export.

**Highlights:** GPS, GALILEO, GLONASS support, Accurate position display, Multiple map layers, KML import/export, Outdoor activity helper

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $24.99 | one-time |

**What reviewers like**

- ⭐ Excellent for military utilities
- ⭐ Surprisingly powerful and accurate for a free app
- ⭐ Great app to have, recommended

**What reviewers complain about**

- 🚫 Ads block crucial information like coordinates
- 🚫 Layers and features not working as expected
- 🚫 App crashes and becomes unusable
- 🚫 Paid version doesn't work as advertised

**Reported bugs**

- Issues with importing and exporting KML files
- Inability to plot grids and see coordinates
- App constantly re-centers to user's location

**Requested features**

- Offline map support
- Ability to rename and manage layers
- Compass calibration and orientation options
- Sharing and syncing of waypoints/markers
- More map types and grid formats (e.g. British National Grid)


## Frequently asked questions

### Is GB Grid Converter free?

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

### Is Mgrs & Utm Map free?

Mgrs & Utm Map is free to download, with in-app purchases available.

### Which has better reviews, GB Grid Converter or Mgrs & Utm Map?

GB Grid Converter is rated higher. GB Grid Converter averages 5.0 out of 5 from 1 ratings, while Mgrs & Utm Map averages 4.6 from 2.6K ratings.

### Do GB Grid Converter or Mgrs & Utm Map have ads?

Mgrs & Utm Map shows ads; GB Grid Converter does not.

### Which is updated more often, GB Grid Converter or Mgrs & Utm Map?

GB Grid Converter ships an update every 2 months, and Mgrs & Utm Map every 2 months. Most recently, GB Grid Converter was updated on November 1, 2026 and Mgrs & Utm Map on November 6, 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.*