# Grid Ref UTM vs Coordinate Converter

The clearest difference is in-app purchases: Coordinate Converter at none against Grid Ref UTM's 1. Coordinate Converter also leads on update cadence (monthly vs every 10 months) and review sentiment (100% vs 74%). Grid Ref UTM's advantage is ratings volume (183 vs 20) and iOS requirement (11.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Grid Ref UTM sells 1 one-off in-app purchase. Coordinate Converter asks for nothing beyond the download.

Coordinate Converter holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Grid Ref UTM has 183 ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 74% of Grid Ref UTM's written reviews are positive against 100% of Coordinate Converter's.

Grid Ref UTM ships an update every 10 months, Coordinate Converter monthly. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Grid Ref UTM | Coordinate Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (183 ratings)](https://appshunter.io/ios/app/grid-ref-utm/id962314746/reviews) | **[4.8 (20 ratings)](https://appshunter.io/ios/app/coordinate-converter-mygpsc/id6748367405/reviews)** |
| Number of ratings | **183** | 20 |
| Positive reviews | 73.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 9 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mike Irving](https://appshunter.io/developer/393933736) | [Richard Vetter](https://appshunter.io/developer/1760073569) |

## What reviewers say

### 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 |


### Coordinate Converter

[App page](https://appshunter.io/ios/app/coordinate-converter-mygpsc/id6748367405)

Convert GPS coordinates to various formats like DMS, DDM, UTM, MGRS, and GARS. This tool works offline, allowing you to capture, convert, and save locations without an internet connection. It's ideal for field use, SAR operations, and map enthusiasts.

**Highlights:** Offline GPS coordinate conversion, Supports DD, DMS, DDM, UTM, MGRS, GARS, Capture current location or paste coordinates, History log for saved locations, Share converted locations, Ad-free and privacy-focused

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

**In-app purchases:** none


## Frequently asked questions

### Is Grid Ref UTM free?

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

### Is Coordinate Converter free?

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

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

Coordinate Converter is rated higher. Grid Ref UTM averages 4.6 out of 5 from 183 ratings, while Coordinate Converter averages 4.8 from 20 ratings.

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

Neither Grid Ref UTM nor Coordinate Converter shows ads.

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

Grid Ref UTM ships an update every 10 months, and Coordinate Converter monthly. Most recently, Grid Ref UTM was updated on October 7, 2026 and Coordinate Converter on October 12, 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.*