# GK Field Mapper vs VRAFY Sampling

The clearest difference is in-app purchases: VRAFY Sampling at none against GK Field Mapper's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. GK Field Mapper sells 4 in-app purchases, starting at $5.99 per month. VRAFY Sampling asks for nothing beyond the download.

GK Field Mapper ships an update monthly, VRAFY Sampling every 3 weeks. The most recent releases landed on September 5, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | GK Field Mapper | VRAFY Sampling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gk-field-mapper/id6448194019/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 64 MB | 85 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [GK Technology, Inc.](https://appshunter.io/developer/1683879796) | [PCT Agcloud](https://appshunter.io/developer/1755469946) |

## What reviewers say

### 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 |


### VRAFY Sampling

[App page](https://appshunter.io/ios/app/vrafy-sampling/id6746164921)

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

**In-app purchases:** none


## Frequently asked questions

### Is GK Field Mapper free?

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

### Is VRAFY Sampling free?

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

### Do GK Field Mapper or VRAFY Sampling have ads?

Neither GK Field Mapper nor VRAFY Sampling shows ads.

### Which is updated more often, GK Field Mapper or VRAFY Sampling?

GK Field Mapper ships an update monthly, and VRAFY Sampling every 3 weeks. Most recently, GK Field Mapper was updated on September 5, 2026 and VRAFY Sampling on September 13, 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.*