# Coordinate Master

> Powerful map coordinate converter supporting over 1700 global systems. (iPhone/iPad app by Anthony Dunk.)

- Source: https://appshunter.io/ios/app/coordinate-master/id1189917015 (this page in markdown: same URL + `.md`)
- Developer: [Anthony Dunk](https://appshunter.io/developer/704471943)
- Category: Utilities, Navigation
- Price: $3.99
- Rating: 4.40/5 from 5 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 1 MB
- Languages: American English
- Released: 2017-01-03
- Data updated: 2026-08-27
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/coordinate-master/id1189917015/reviews.md

## What is Coordinate Master?

Coordinate Master is one of the most powerful map coordinate converters available. It uses the PROJ4 library and a lookup file containing projection and datum parameters to allow conversion between more than 1700 coordinate systems from around the world.

Lat/lon, UTM, US coordinate systems (including US State Plane), Australian coordinate systems (including GDA2020), UK coordinate systems (including British National Grid) and many, many others are supported. Custom coordinate systems can be added and affine parameters are supported for adding local grid systems.

The app can use manually entered coordinates, your current GPS location, or get the lat/lon coordinates from a photo.

## Key features

- 1700+ coordinate systems
- PROJ4 library integration
- Supports lat/lon, UTM, national grids
- Custom coordinate system support
- GPS location input
- Photo coordinate extraction

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/coordinate-master/id1189917015/reviews.md

### 5/5 — Brilliant App

*2026-07-06*

This App is brilliant, I can’t praise it enough.  I use it to convert co-ords from our mines dept to Lat and Long , fantastic . Thank you developers, you are worth your weight in gold 😄👍🏻

### 1/5 — Crashes

*2026-01-16*

Does not work and no longer supported

### 5/5 — Trustworthy

*2026-01-08*

It’s good, once you get used to it.  And I trust the results. Good that it is being kept up-to-date.  It would be good to see more rows of the 2 lists used to choose the projection/datum.  Keep up the good work!

### 5/5 — A very useful utility program

*2025-01-30*

Oh WOW!

### 5/5 — The best Surveyor app

*2024-12-07*

Is the more important, complete app to help to any surveyor. All surveyors should have this app.

### 5/5 — Great App

*2020-11-05*

For what this app is & does is a solid value for 1.99. I’m a professional land surveyor working as part of a large organization. This app lets me empower people who know next to nothing about surveying but can reliably follow instructions on converting their waypoints for “x” into state plane coordinates or to lat/long as needed. With the GPS enabled, they can hover over something for a few seconds to get a decent “fix” & then copy that data to their clipboard to place in another app or wherever they want to store it. For anyone who feels the app doesn’t perfectly translate between datums, please understand that the world isn't a perfect geometric figure & the mathematical models do their best to approximate but errors will occur relative to source data & datum as well as the output. That shouldn’t reflect negatively against the app but it’s merely how the process of translation & rotation of data between datums works. However, tapping on a field to enter coordinates causes the screen to scroll up beyond what the user can see. So you can’t copy/paste values for easy conversion. This is a pain.

11/04/2020: New update did indeed fix screen issue I was experiencing. Thank you.

**Developer response:** Thanks for the feedback. The issue with the text entry fields not being visible when entering values has been fixed in version 2.3.

## Frequently asked questions about Coordinate Master

### What coordinate systems does Coordinate Master support?

Coordinate Master supports over 1700 coordinate systems globally, including lat/lon, UTM, US State Plane, Australian GDA2020, and British National Grid. It also allows for custom coordinate systems to be added.

### How can I input coordinates into Coordinate Master?

You can input coordinates by manually entering them, using your current GPS location, or by extracting latitude and longitude from a photo.

### What is the price of Coordinate Master?

Coordinate Master is a paid application priced at $3.99.

### What devices is Coordinate Master available on?

Coordinate Master is available for iPhone and iPod devices.

### How often is Coordinate Master updated?

The latest version, 4.4, was released on November 18, 2022. The app was originally released on January 3, 2017.

### What is the age rating for Coordinate Master?

Coordinate Master has an age rating of 4+, making it suitable for a wide range of users.

### Does Coordinate Master have ads?

No, Coordinate Master does not contain advertisements.

### What is the user rating for Coordinate Master?

Coordinate Master has a strong user rating of 4.4 stars based on 5 ratings.

## Version history (last 5 releases)

### 4.4 — 2022-11-18

User interface improvements

### 4.3 — 2022-06-07

Fixed coordinate conversion bug.

### 4.2 — 2022-06-03

Added an option on the main page menu to rate and review the app.

### 4.1 — 2022-05-01

Bug fixes

### 4.0 — 2022-04-29

Added buttons to show coordinate locations on a map. Added the ability to add and edit user projections from within the app.

## Apps similar to Coordinate Master

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Drilling Hydraulics 2](https://appshunter.io/ios/app/drilling-hydraulics-2/id1322464939) | — | $9.99 | Utilities |
| [Coordinates Lite](https://appshunter.io/ios/app/coordinates-lite/id357411098) | 2.2 (17) | Free | Utilities |
| [Lat Lon Converter Pro](https://appshunter.io/ios/app/lat-lon-converter-pro/id987918199) | 5.0 (1) | $2.99 | Utilities |
| [Scout Coordinate Converter Pro](https://appshunter.io/ios/app/scout-coordinate-converter-pro/id6755980127) | 5.0 (1) | Free | Utilities |
| [Zeliox NEO](https://appshunter.io/ios/app/zeliox-neo/id6751868794) | — | Free | Utilities |
| [InterCalc](https://appshunter.io/ios/app/intercalc/id498391316) | 5.0 (1) | Free | Utilities |

## More apps by Anthony Dunk

- [Handy GPS](https://appshunter.io/ios/app/handy-gps/id704471940)
- [Handy GPS lite](https://appshunter.io/ios/app/handy-gps-lite/id801877986)
- [Sky Light Pro](https://appshunter.io/ios/app/sky-light-pro/id1527400103)
- [Handy Surveying](https://appshunter.io/ios/app/handy-surveying/id1575016601)
- [Rock Art Enhancer](https://appshunter.io/ios/app/rock-art-enhancer/id1615010892)

All apps by Anthony Dunk: https://appshunter.io/developer/704471943

## Related topics

[gbs coordinate](https://appshunter.io/ios/topics/gbs-coordinate) · [gis coordinate](https://appshunter.io/ios/topics/gis-coordinate)

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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 2026-08-27.*