# Tomstrails GPS Duo vs GPS Coordinates & Map Tools

The clearest difference is rating: Tomstrails GPS Duo at 4.6 against GPS Coordinates & Map Tools's 2.7. Tomstrails GPS Duo also leads on in-app purchases (none vs 11) and ads (none vs shown). GPS Coordinates & Map Tools's advantage is review sentiment (100% vs 91%). On price and device support there is nothing between them.

Both are free to download. GPS Coordinates & Map Tools sells 9 in-app purchases, starting at $7.99 per 7 days. Tomstrails GPS Duo asks for nothing beyond the download.

Tomstrails GPS Duo holds the better App Store score, 4.6 against 2.7. That said, the two scores are not equally well evidenced: Tomstrails GPS Duo has 149 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 91% of Tomstrails GPS Duo's written reviews are positive against 100% of GPS Coordinates & Map Tools's, so the app with the better star average is not the one people write more warmly about.

Tomstrails GPS Duo ships an update monthly, GPS Coordinates & Map Tools every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Tomstrails GPS Duo | GPS Coordinates & Map Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (149 ratings)](https://appshunter.io/ios/app/tomstrails-gps-duo/id425642315/reviews)** | [2.7 (6 ratings)](https://appshunter.io/ios/app/gps-coordinates-and-map-tools/id1510947589/reviews) |
| Number of ratings | **149** | 6 |
| Positive reviews | 90.6% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free** | Freemium |
| Size | 10 MB | 306 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tomstrails.com](https://appshunter.io/developer/425642318) | [ZipoApps](https://appshunter.io/developer/1671444635) |

## What reviewers say

### Tomstrails GPS Duo

[App page](https://appshunter.io/ios/app/tomstrails-gps-duo/id425642315)

This app displays your location using various global coordinate systems, including British, Irish, MGRS, and UTM grids, as well as latitude and longitude. It features an optimized battery life for extended use and a high-contrast display for readability in all conditions.

**Highlights:** Multiple grid formats (British, Irish, MGRS, UTM), Latitude & Longitude display, Optimized battery life, High-contrast display, Simultaneous grid format display

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🎯 Accurate GPS coordinates and location tracking
- ⚡ Fast performance and quick GPS fixes
- 🔋 Low battery consumption
- 📍 Multiple coordinate system support (Lat/Long, UTM, MGRS, OS Grid)

**What reviewers complain about**

- 🧭 Azimuth/compass readings reported as ~30 degrees off
- 📍 Limited coordinate system options (missing NAD83)
- 🔄 Recent UI changes made coordinate systems less accessible
- ⌚ Apple Watch functionality limited or unavailable
- 🌙 No dark mode or night navigation support

**Reported bugs**

- App crashes on launch in certain locations
- iPad GPS not recognized despite device capability
- Azimuth readings approximately 30 degrees inaccurate
- Google Maps linking feature broken in recent updates
- Inconsistent performance with older iOS versions

**Requested features**

- Apple Watch full compatibility
- Dark mode or inverted colors for night navigation
- Portrait orientation mode
- 10-figure grid references instead of 8-figure
- NAD83 coordinate system support


### GPS Coordinates & Map Tools

[App page](https://appshunter.io/ios/app/gps-coordinates-and-map-tools/id1510947589)

Collect, track, and convert GPS coordinate data with support for various coordinate systems. Measure distances and areas on maps, and display KML files. Offers cloud database features for collaboration and offline work.

**Highlights:** Collect GPS coordinates, GPS tracking, View coordinate data on map, Convert coordinate systems, Measure distances and areas, Display KML files, Cloud database functions

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $7.99 | per 7 days |
| Unlimited Access | $8.99 | per 7 days |
| Unlimited Access | $9.99 | per year |
| 1 Month Subscription | $14.99 | per month |
| Unlimited Access | $19.99 | per month |
| Unlimited Access | $29.99 | per month |
| Unlimited Access | $39.99 | per year |
| Unlimited Access | $49.99 | per year |
| 1 Year Subscription | $149.99 | per year |


## Frequently asked questions

### Is Tomstrails GPS Duo free?

Tomstrails GPS Duo is free to download, with no in-app purchases.

### Is GPS Coordinates & Map Tools free?

GPS Coordinates & Map Tools is free to download, with in-app purchases available.

### Which has better reviews, Tomstrails GPS Duo or GPS Coordinates & Map Tools?

Tomstrails GPS Duo is rated higher. Tomstrails GPS Duo averages 4.6 out of 5 from 149 ratings, while GPS Coordinates & Map Tools averages 2.7 from 6 ratings.

### Do Tomstrails GPS Duo or GPS Coordinates & Map Tools have ads?

GPS Coordinates & Map Tools shows ads; Tomstrails GPS Duo does not.

### Which is updated more often, Tomstrails GPS Duo or GPS Coordinates & Map Tools?

Tomstrails GPS Duo ships an update monthly, and GPS Coordinates & Map Tools every 2 months. Most recently, Tomstrails GPS Duo was updated on October 23, 2026 and GPS Coordinates & Map Tools on October 24, 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.*