Gemma GPS vs ThaiTacGPS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Digital compass
- Battery saving mode
- Save locations
- Night vision mode
- Navigation guidance
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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/
ThaiTacGPS
This navigation app provides GPS coordinates in both Latitude/Longitude and MGRS systems. It also allows users to measure distances and bearings directly on the map.
- Latitude/Longitude GPS
- MGRS coordinate system
- Distance measurement
- Bearing measurement
- Map interface
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GPS for Latitude Longitude System, MGRS system and Measure in map for distance and bearing have a good work ,Soldier!!
Screenshots
Verdict
The clearest difference is rating: Gemma GPS at 5.0 against ThaiTacGPS's 4.5. ThaiTacGPS's advantage is in-app purchases (none vs 2) and review sentiment (100% vs 86%). On price, ratings volume, update cadence and ads 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
Both are free to download. Gemma GPS sells 2 in-app purchases, starting at $199.99 per year. ThaiTacGPS asks for nothing beyond the download.
Gemma GPS holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews complicate that: 86% of Gemma GPS's written reviews are positive against 100% of ThaiTacGPS's, so the app with the better star average is not the one people write more warmly about.
Gemma GPS ships an update every 2 months, ThaiTacGPS every 6 weeks. Both last shipped on October 14, 2026.
| Parameter | Gemma GPS | ThaiTacGPS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 85.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 18.0 | 6.1 — better |
| Further details — not scored | ||
| Size | 54 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Patrick Tudor | Eggyothin Pila |
Customer experience
Gemma GPS
ThaiTacGPS
In-app purchases
Gemma GPS
- Gemma GPS Pro Support$199.991 Year
- Gemma GPS Enterprise Support$499.991 Year
ThaiTacGPS
No in-app purchases
Questions
Is Gemma GPS free?
Is ThaiTacGPS free?
Which has better reviews, Gemma GPS or ThaiTacGPS?
Do Gemma GPS or ThaiTacGPS have ads?
Which is updated more often, Gemma GPS or ThaiTacGPS?
Other comparisons
