# GRTech Beacon 4.0/5.0 NTRIP vs GK Field Mapper

The clearest difference is in-app purchases: GRTech Beacon 4.0/5.0 NTRIP at none against GK Field Mapper's 4. GRTech Beacon 4.0/5.0 NTRIP also leads on iOS requirement (15.6 vs 17.0). GK Field Mapper's advantage is update cadence (monthly vs every 9 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. GK Field Mapper sells 4 in-app purchases, starting at $5.99 per month. GRTech Beacon 4.0/5.0 NTRIP asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for GRTech Beacon 4.0/5.0 NTRIP against 5.0 for GK Field Mapper. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

GRTech Beacon 4.0/5.0 NTRIP ships an update every 9 months, GK Field Mapper monthly. The most recent releases landed on September 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | GRTech Beacon 4.0/5.0 NTRIP | GK Field Mapper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/grtech-beacon-4050-ntrip/id1554035818/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/gk-field-mapper/id6448194019/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | **Free** | Freemium |
| Size | 5 MB | 58 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glacial Ridge Technologies](https://appshunter.io/developer/1023201605) | [GK Technology, Inc.](https://appshunter.io/developer/1683879796) |

## What reviewers say

### GRTech Beacon 4.0/5.0 NTRIP

[App page](https://appshunter.io/ios/app/grtech-beacon-4050-ntrip/id1554035818)

This client app provides RTK corrections to compatible GPS receivers. It is designed for exclusive use with GRTech Beacon 4.0/5.0 devices. Be aware that continuous GPS use in the background can significantly impact battery life.

**Highlights:** RTK correction delivery, Compatible with GRTech Beacon 4.0/5.0, Background GPS usage management, Designed for GPS receivers

**In-app purchases:** none


### GK Field Mapper

[App page](https://appshunter.io/ios/app/gk-field-mapper/id6448194019)

This app provides comprehensive mobile mapping tools for surveying, recording GPS locations, and visualizing geospatial data. It supports various data formats, custom styling, and offline functionality, with cloud synchronization for seamless data transfer.

**Highlights:** Survey points, lines, polygons, and benchmarks, Log full GPS data and create quickmarks, Utilize internal or external GPS devices, Load geo-referenced images and vector data, Create drawings, measurements, and style data labels, Offline functionality and cloud synchronization

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $5.99 | per month |
| Professional Monthly | $14.99 | per month |
| Professional Yearly | $119.99 | per year |
| Enterprise | $239.99 | per year |


## Frequently asked questions

### Is GRTech Beacon 4.0/5.0 NTRIP free?

GRTech Beacon 4.0/5.0 NTRIP is free to download, with no in-app purchases.

### Is GK Field Mapper free?

GK Field Mapper is free to download, with in-app purchases available.

### Which has better reviews, GRTech Beacon 4.0/5.0 NTRIP or GK Field Mapper?

GRTech Beacon 4.0/5.0 NTRIP and GK Field Mapper are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do GRTech Beacon 4.0/5.0 NTRIP or GK Field Mapper have ads?

Neither GRTech Beacon 4.0/5.0 NTRIP nor GK Field Mapper shows ads.

### Which is updated more often, GRTech Beacon 4.0/5.0 NTRIP or GK Field Mapper?

GRTech Beacon 4.0/5.0 NTRIP ships an update every 9 months, and GK Field Mapper monthly. Most recently, GRTech Beacon 4.0/5.0 NTRIP was updated on September 29, 2026 and GK Field Mapper 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.*