# UTM Grid Ref Compass vs SupaChaja

The clearest difference is price: SupaChaja at Free against UTM Grid Ref Compass's $0.99. SupaChaja also leads on update cadence (monthly vs every 12 months). UTM Grid Ref Compass's advantage is iOS requirement (7.1 vs 16.6). On ads, in-app purchases and device support there is nothing between them.

SupaChaja is free to download; UTM Grid Ref Compass costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UTM Grid Ref Compass ships an update every 12 months, SupaChaja monthly. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | UTM Grid Ref Compass | SupaChaja |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.1 (17 ratings)](https://appshunter.io/ios/app/utm-grid-ref-compass/id563242031/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Monetization | Paid | — |
| Size | 2 MB | 50 MB |
| Requires iOS | **7.1** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mike Irving](https://appshunter.io/developer/393933736) | [TAJA INC](https://appshunter.io/developer/1687303287) |

## What reviewers say

### UTM Grid Ref Compass

[App page](https://appshunter.io/ios/app/utm-grid-ref-compass/id563242031)

This app displays your current location in the Universal Transverse Mercator (UTM) geographic coordinate system. It provides UTM Grid Ref, compass bearing, WGS84 coordinates, and hemisphere. It also includes a guide to US UTM zones and allows sharing your location via text, email, or tweet.

**Highlights:** UTM Grid Ref display, Compass Bearing, WGS84 Latitude and Longitude, Hemisphere indication, US UTM Zones guide, Location sharing (SMS, Email, Tweet)

**Features:** Vision Pro support

**In-app purchases:** none


### SupaChaja

[App page](https://appshunter.io/ios/app/supachaja/id6477149828)

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

**In-app purchases:** none


## Frequently asked questions

### Is UTM Grid Ref Compass free?

UTM Grid Ref Compass costs $0.99, with no in-app purchases.

### Is SupaChaja free?

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

### Do UTM Grid Ref Compass or SupaChaja have ads?

Neither UTM Grid Ref Compass nor SupaChaja shows ads.

### Which is updated more often, UTM Grid Ref Compass or SupaChaja?

UTM Grid Ref Compass ships an update every 12 months, and SupaChaja monthly. Most recently, UTM Grid Ref Compass was updated on October 3, 2026 and SupaChaja on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*