Comparison

Gemma GPS vs UTM Geo Map

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

Head to head
About

Gemma GPS

Navigate the outdoors with a digital compass that conserves battery. Save locations and get guided back to them with a simple arrow. Ideal for travelers, hikers, sailors, and geocachers who venture off the beaten path.

Highlights
  • Digital compass
  • Battery saving mode
  • Save locations
  • Night vision mode
  • Navigation guidance
Features
Read full description

Precision GPS waypoint navigation for professionals. Capture locations. Convert coordinates. Navigate back. FEATURES: • Save waypoints with geodetic precision • Six coordinate formats: Decimal, DDM, DMS, UTM, MGRS, Maidenhead • Compass navigation with bearing and distance • Organize with folders and routes • Import and export GPX files • Full JSON backup and restore • Night vision mode for dark adaptation • No ads, no tracking COORDINATE FORMATS: • Decimal Degrees (37.7749°) • Degrees Decimal Minutes (37° 46.497' N) • Degrees-Minutes-Seconds (37°46'29.7"N) • UTM (10S 551309 4177447) • MGRS (10SEG 51309 77447) • Maidenhead Grid (CM87ss) Perfect for search and rescue, surveying, geocaching, amateur radio, aviation, marine navigation, and anyone who needs real coordinates. Every feature is free. Optional support subscriptions help fund continued development. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

UTM Geo Map

This app allows users to work with various coordinate systems including Latitude/Longitude, UTM, and MGRS. Save points with automatic address information, view them on a map, and navigate using GPS. Manage all saved points in a data list with new icon customization.

Highlights
  • Supports Latitude/Longitude, UTM, MGRS, DMS, Geohash, Plus Codes
  • Save points with automatic address info
  • Navigate using device GPS
  • Manage saved points in a data list
  • Add custom icons for saved points
Features
Read full description

UTM Maps – Mgrs & Utm Map Easily work with Latitude/Longitude, UTM, MGRS, DMS, Geohash, and Plus Codes. Save points with automatic address info, view details on the map, and navigate in the field using your device’s GPS. Manage all saved points in a clear data list for quick access. New Feature :Add an icon for new records, making it easier for you to mark coordinate points. GLandUTM - UTM Geo Map Easy and reliable geo map.

Screenshots

Gemma GPS4 screens
UTM Geo Map4 screens

Verdict

The call

The clearest difference is in-app purchases: UTM Geo Map at none against Gemma GPS's 2. UTM Geo Map also leads on ratings volume (93 vs 1) and review sentiment (100% vs 86%). Gemma GPS's advantage is rating (5.0 vs 4.7). On price, update cadence, ads and monetization model 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

Both are free to download. Gemma GPS sells 2 in-app purchases, starting at $199.99 per year. UTM Geo Map asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Gemma GPS holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: UTM Geo Map has 93 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 86% of Gemma GPS's written reviews are positive against 100% of UTM Geo Map's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on August 6, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
Gemma GPS versus UTM Geo Map: the parameters behind the verdict, then further details
ParameterGemma GPSUTM Geo Map
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (93 ratings)
Positive reviews85.7% of reviews100.0% of reviews — better
Number of ratings193 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.016 — better
Further details — not scored
Size54 MB42 MB
Age rating4+4+
DeveloperPatrick Tudor4Digsoft

Customer experience

Gemma GPS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

UTM Geo Map

All ratings93 ratings
Positive93.5%
Neutral1.1%
Negative5.4%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Gemma GPS

Subscriptions2
  • Gemma GPS Pro Support$199.991 Year
  • Gemma GPS Enterprise Support$499.991 Year
None

UTM Geo Map

No in-app purchases

Questions

Is Gemma GPS free?
Gemma GPS is free to download, with in-app purchases available.
Is UTM Geo Map free?
UTM Geo Map is free to download, with no in-app purchases.
Which has better reviews, Gemma GPS or UTM Geo Map?
Gemma GPS is rated higher. Gemma GPS averages 5.0 out of 5 from 1 ratings, while UTM Geo Map averages 4.7 from 93 ratings.
Do Gemma GPS or UTM Geo Map have ads?
Neither Gemma GPS nor UTM Geo Map shows ads.
Which is updated more often, Gemma GPS or UTM Geo Map?
Gemma GPS ships an update every 2 months, and UTM Geo Map every 2 months. Most recently, Gemma GPS was updated on August 6, 2026 and UTM Geo Map on September 21, 2026.

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