Comparison

UTM Grid Ref Compass vs SupaChaja

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

UTM Grid Ref Compass

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
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Find out your current location on the Universal Transverse Mercator (UTM) geographic coordinate system. This app will provide you with your current UTM Grid Ref, along with a Compass Bearing, WGS84 Latitude and Longitude values, and an indication of the current Hemisphere. An indication of the Device GPS readings will also be shown. Includes a handy graphical guide to the United States UTM Zones. This app will work worldwide, whereve UTM Data is required. Ideal for outdoor activities, walking, climbing etc. Remember to always carry a map and physical compass in addition to your iPhone. For the best accuracy, use in an open space, away from trees or hill edges. Like a traditional compass, use with the phone in a flat position, not upright. When continued usage is required, you can set the iPhone Screen to stay on indefinitely, from the Settings tab. Send or Share your location information in a Text Message (or iMessage), Email or Tweet* This app requires Location Services to be enabled in your iPhone, and you must grant permission to the app to use these. Compatible with iPhone. Not compatible with iPod Touch, or (non-cellular) iPads, due to the lack of GPS and Compass hardware. * - Internet Connection, and correctly configured Text Message (or iMessage), Email and / or Twitter settings, required to fulfil.

About

SupaChaja

Features
Read full description

Platform for helping Electric Vehicle users with finding and navigating to connected public EV chargers

Screenshots

UTM Grid Ref Compass3 screens
SupaChaja4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
UTM Grid Ref Compass versus SupaChaja: the parameters behind the verdict, then further details
ParameterUTM Grid Ref CompassSupaChaja
Price$0.99Free — better
Rating4.1 (17 ratings) — better—
Positive reviews77.8% of reviews—
Number of ratings17 — better—
Update frequencyEvery 12 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPod — betteriPhone
Requires iOS7.1 — better16.6
Further details — not scored
Size2 MB50 MB
Age rating4+4+
DeveloperMike IrvingTAJA INC

In-app purchases

None

UTM Grid Ref Compass

No in-app purchases

None

SupaChaja

No in-app purchases

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.

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