# Gemma GPS vs ThaiTacGPS

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.

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.

## The numbers

| Metric | Gemma GPS | ThaiTacGPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gemma-gps/id731851553/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/thaitacgps/id894558536/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 54 MB | 19 MB |
| Requires iOS | 18.0 | **6.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Tudor](https://appshunter.io/developer/731851556) | [Eggyothin Pila](https://appshunter.io/developer/808692522) |

## What reviewers say

### Gemma GPS

[App page](https://appshunter.io/ios/app/gemma-gps/id731851553)

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:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gemma GPS Pro Support | $199.99 | per year |
| Gemma GPS Enterprise Support | $499.99 | per year |


### ThaiTacGPS

[App page](https://appshunter.io/ios/app/thaitacgps/id894558536)

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.

**Highlights:** Latitude/Longitude GPS, MGRS coordinate system, Distance measurement, Bearing measurement, Map interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gemma GPS free?

Gemma GPS is free to download, with in-app purchases available.

### Is ThaiTacGPS free?

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

### Which has better reviews, Gemma GPS or ThaiTacGPS?

Gemma GPS is rated higher. Gemma GPS averages 5.0 out of 5 from 1 ratings, while ThaiTacGPS averages 4.5 from 2 ratings.

### Do Gemma GPS or ThaiTacGPS have ads?

Neither Gemma GPS nor ThaiTacGPS shows ads.

### Which is updated more often, Gemma GPS or ThaiTacGPS?

Gemma GPS ships an update every 2 months, and ThaiTacGPS every 6 weeks. Most recently, Gemma GPS was updated on October 14, 2026 and ThaiTacGPS on October 14, 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.*