# Grid Ref UTM — MGRS GPS Map Reference App

> Global map reference tool using UTM coordinates and GPS. (iPhone/iPad app by Mike Irving.)

- Source: https://appshunter.io/ios/app/grid-ref-utm/id962314746 (this page in markdown: same URL + `.md`)
- Developer: [Mike Irving](https://appshunter.io/developer/393933736)
- Category: Navigation, Travel
- Price: Free with in-app purchases
- Rating: 4.60/5 from 183 App Store ratings · 19 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 5 MB
- Languages: American English
- Released: 2015-02-26
- Data updated: 2026-08-18
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/grid-ref-utm/id962314746/reviews.md

## What is Grid Ref UTM?

Pinpoint your current map reference location anywhere in the world, using the Universal Transverse Mercator geographic coordinate system. (UTM)

App Provides: UTM Grid Ref, Hemisphere, and WGS84 Latitude and Longitude values.

The Accuracy of Readings, as indicated by your device, will also be shown. 

Tweet to Share your Location via Twitter!

Grid Ref UTM - Your Grid Reference App!

App will operate internationally. App includes a graphical guide to the United States (USA) UTM Zones.

Ideally suited for use by walkers, hikers and outdoor sports enthusiasts. It is recommended that you should always carry a map and physical compass when on outdoor pursuits.

For best results, use in a flat position, not an upright position. Much like a traditional compass. Use in an open space, where possible, away from trees, buildings and sources of interference.

For continued on-screen display of Grid Reference information, please set your Auto-Lock preference in the 'Settings' App. (Settings -> General -> Auto-Lock) 

Compatible with handsets that feature GPS hardware. You may have to grant the app permission to use this information.

--

Ad Supported.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## Recent user reviews (10 of 19)

All indexed reviews: https://appshunter.io/ios/app/grid-ref-utm/id962314746/reviews.md

### 1/5 — Utm

*2022-02-14*

Its only utm coordinates

### 4/5 — Please update

*2021-08-03, version 2.3.1*

This app looks great but I can’t use it unless the owner updates it.
Thanks.

### 5/5 — Thank you

*2020-12-31*

This app is a dream to use. If your an outdoorsman and understand basic navigation this app is literally all you need.

### 5/5 — Does exactly what it’s supposed to

*2019-11-19*

Finally, an app that says what it does and does it.  Not to mention, I found a minor glitch and notified the developer, and it was fixed within a day.  I’m definitely going to check out the other apps from this developer.

### 1/5 — Trash

*2019-07-23*

App is trash

### 5/5 — Hi

*2019-03-18*

Hi

### 5/5 — Evaluation

*2019-01-27*

Very useful

### 5/5 — Useful

*2019-01-13*

Very nice.only five.

### 4/5 — Grid Ref

*2018-10-30, version 2.2.1*

Excellent tool. Would be nice if you could track when going to multiple locations.

### 1/5 — Owner

*2018-06-22, version 2.2.1*

I liked the app and was willing to pay for it. The adds are unacceptable and I'm going to delete app and purchase another

## Frequently asked questions about Grid Ref UTM

### What does Grid Ref UTM do?

Grid Ref UTM allows you to pinpoint your exact map reference location anywhere in the world using the Universal Transverse Mercator (UTM) geographic coordinate system. It provides your UTM grid reference, hemisphere, and WGS84 latitude and longitude values.

### What are the key features of Grid Ref UTM?

Key features include displaying UTM grid references, WGS84 latitude and longitude, hemisphere information, and the accuracy of your device's readings. You can also share your location via Twitter and the app operates internationally with a guide to USA UTM Zones.

### Is Grid Ref UTM free to use?

The application is ad-supported and offers in-app purchases. While you can use the core functionality for free, there may be options to enhance your experience or remove ads through purchases.

### What devices is Grid Ref UTM compatible with?

This app is compatible with handsets that feature GPS hardware. You may need to grant the app permission to access this location information through your device's settings.

### Who would benefit from using Grid Ref UTM?

This app is ideally suited for use by walkers, hikers, and outdoor sports enthusiasts who require precise map reference locations. It's also useful for anyone who needs to know their exact coordinates for navigation or sharing purposes.

## Version history (last 5 releases)

### 2.3.1 — 2019-11-18

When sharing, data is now in the correct format: Zone, Easting, Northing

### 2.3 — 2019-08-06

- Updated for iPhone X / XS / XS Max / XR
- In App Purchase to remove ads

### 2.2.1 — 2018-03-29

Under the hood improvements for iOS 11

### 2.2 — 2017-05-01

'Tweet Location' now 'Share Location'.. giving you the choice of where to share your Map Location.

### 2.1 — 2016-08-09

- new design and icon

## Apps similar to Grid Ref UTM

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Coordinates – GPS Converter](https://appshunter.io/ios/app/coordinates-gps-converter/id494286614) | 4.6 (6,543) | Free | Navigation |
| [onX Hunt: GPS Hunting Maps](https://appshunter.io/ios/app/onx-hunt-gps-hunting-maps/id672902340) | 4.9 (274,277) | Free | Navigation |
| [Mgrs & Utm Map](https://appshunter.io/ios/app/mgrs-and-utm-map/id1439891984) | 4.6 (2,521) | Free | Navigation |
| [MilGPS](https://appshunter.io/ios/app/milgps/id405835358) | 4.8 (5,509) | $12.99 | Navigation |
| [MGRS, UTM, DMS & ED50 - LUC](https://appshunter.io/ios/app/mgrs-utm-dms-and-ed50-luc/id1441923360) | 4.8 (9) | Free | Navigation |
| [Maps Anywhere: Offline GPS](https://appshunter.io/ios/app/maps-anywhere-offline-gps/id6743178810) | 5.0 (3) | Free | Navigation |

## More apps by Mike Irving

- [Shot Time - Pool Timer](https://appshunter.io/ios/app/shot-time-pool-timer/id461362566)
- [GB Grid Ref Compass](https://appshunter.io/ios/app/gb-grid-ref-compass/id515935554)
- [Irish Grid Ref Compass](https://appshunter.io/ios/app/irish-grid-ref-compass/id536594536)
- [UTM Grid Ref Compass](https://appshunter.io/ios/app/utm-grid-ref-compass/id563242031)
- [Photo Tap](https://appshunter.io/ios/app/photo-tap/id645900990)

All apps by Mike Irving: https://appshunter.io/developer/393933736

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*