# Tomstrails GPS UTM vs 3D Offline Maps

The clearest difference is in-app purchases: Tomstrails GPS UTM at none against 3D Offline Maps's 7. 3D Offline Maps's advantage is update cadence (every 6 days vs every 6 weeks) and device support (3 vs 1). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. 3D Offline Maps sells 6 in-app purchases, starting at $1.99 per 7 days. Tomstrails GPS UTM asks for nothing beyond the download.

Tomstrails GPS UTM holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 1.6K and 655 respectively. Written reviews point the same way: 84% of Tomstrails GPS UTM's written reviews are positive against 80% of 3D Offline Maps's.

Tomstrails GPS UTM ships an update every 6 weeks, 3D Offline Maps every 6 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Tomstrails GPS UTM | 3D Offline Maps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.6K ratings)](https://appshunter.io/ios/app/tomstrails-gps-utm/id1004370364/reviews)** | [4.6 (655 ratings)](https://appshunter.io/ios/app/3d-offline-maps-gps-tracker/id1629505231/reviews) |
| Number of ratings | **1.6K** | 655 |
| Positive reviews | **83.8% of reviews** | 80.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 72 MB |
| Requires iOS | 18.0 | **15.4** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tomstrails.com](https://appshunter.io/developer/425642318) | [SERGEI BEZDENEZHNYKH](https://appshunter.io/developer/1519570418) |

## What reviewers say

### Tomstrails GPS UTM

[App page](https://appshunter.io/ios/app/tomstrails-gps-utm/id1004370364)

This app provides precise UTM grid references and displays your location on topographic maps. It works offline, supports various regional datums, and offers multiple coordinate formats for easy sharing and use in other applications.

**Highlights:** Fast and accurate UTM grid reference, Locate position on topographic maps, Works without phone signal, Supports regional datums (e.g., ED50), Multiple coordinate formats (1m, 10m, 100m), Share coordinates with other apps, High contrast display for readability

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and free
- 👍 Works well
- 👍 Easy to use
- 👍 Accurate and reliable
- 👍 Great for hiking and emergencies

**What reviewers complain about**

- 🐛 Doesn't do anything
- 🐛 Coordinates not always accurate
- 💰 Requires payment for some features

**Reported bugs**

- Stopped working after iOS update
- UTM grids were off initially, required setting changes

**Requested features**

- Add support for Morocco coordinate system
- Add option to average readings and hold the result
- Add option to reduce coordinate display to 6 digits for emergency use
- Bring back previous features like degrees/minutes display and ability to edit messages


### 3D Offline Maps

[App page](https://appshunter.io/ios/app/3d-offline-maps-gps-tracker/id1629505231)

Explore the world with detailed 2D and 3D offline maps. Record GPS tracks, save routes, and import/export GPX files for seamless navigation on any adventure, even without an internet signal. Plan your journeys, mark points of interest, and share your travels with friends.

**Highlights:** Detailed 2D and 3D offline maps, GPS track recording, Route planning, GPX/KML/KMZ import/export, Waypoint creation and management, Offline map downloads with unlimited storage, Step counter

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Week | $1.99 | per 7 days |
| Premium Month | $3.99 | per month |
| Premium Annual | $12.99 | per year |
| Annual Sale | $12.99 | per year |
| Matching to road | $0.99 | one-time |
| Lifetime | $19.99 | one-time |

**What reviewers like**

- 🗺️ Excellent 3D mapping technology
- 👍 Clear and colorful visualization
- 🧭 Effective offline navigation
- 🔄 Map rotation capability for trail viewing
- ⛰️ Great for hiking and outdoor activities

**What reviewers complain about**

- 💰 Expensive pricing
- 🐛 3D offline maps turn black and become grainy
- 🗺️ Trails not clearly marked or visible
- 🏷️ Roads not identified or labeled
- ⏱️ Slow rendering and zoom performance

**Reported bugs**

- 3D offline maps display black and grainy visuals
- Maps require zooming out and back in to clear display
- GPX file download compatibility issues
- Background tracking does not work

**Requested features**

- CarPlay support integration
- Map selection icon on main page
- Current/real-time satellite imagery
- Map gradients relative to pitch
- Background tracking functionality


## Frequently asked questions

### Is Tomstrails GPS UTM free?

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

### Is 3D Offline Maps free?

3D Offline Maps is free to download, with in-app purchases available.

### Which has better reviews, Tomstrails GPS UTM or 3D Offline Maps?

Tomstrails GPS UTM is rated higher. Tomstrails GPS UTM averages 4.8 out of 5 from 1.6K ratings, while 3D Offline Maps averages 4.6 from 655 ratings.

### Do Tomstrails GPS UTM or 3D Offline Maps have ads?

Neither Tomstrails GPS UTM nor 3D Offline Maps shows ads.

### Which is updated more often, Tomstrails GPS UTM or 3D Offline Maps?

Tomstrails GPS UTM ships an update every 6 weeks, and 3D Offline Maps every 6 days. Most recently, Tomstrails GPS UTM was updated on November 1, 2026 and 3D Offline Maps on November 3, 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.*