# Coordinate Master vs OSARC

The clearest difference is price: OSARC at Free against Coordinate Master's $3.99. Coordinate Master's advantage is update cadence (fortnightly vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

OSARC is free to download; Coordinate Master costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Coordinate Master ships an update fortnightly, OSARC every 6 months. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Coordinate Master | OSARC |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/coordinate-master/id1189917015/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | Paid | — |
| Size | 1 MB | 14 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Dunk](https://appshunter.io/developer/704471943) | [Mississippi State University Extension Service](https://appshunter.io/developer/580535523) |

## What reviewers say

### Coordinate Master

[App page](https://appshunter.io/ios/app/coordinate-master/id1189917015)

Convert coordinates between over 1700 global systems using PROJ4 library. Supports various formats including lat/lon, UTM, and national grids. Can use GPS or photo data for input.

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

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

**In-app purchases:** none


### OSARC

[App page](https://appshunter.io/ios/app/osarc/id6463947688)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Coordinate Master free?

Coordinate Master costs $3.99, with no in-app purchases.

### Is OSARC free?

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

### Do Coordinate Master or OSARC have ads?

Neither Coordinate Master nor OSARC shows ads.

### Which is updated more often, Coordinate Master or OSARC?

Coordinate Master ships an update fortnightly, and OSARC every 6 months. Most recently, Coordinate Master was updated on September 18, 2026 and OSARC on September 10, 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.*