# GK Field Mapper vs PCT Sampling

The clearest difference is in-app purchases: PCT Sampling at none against GK Field Mapper's 4. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for GK Field Mapper against 5.0 for PCT Sampling. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

GK Field Mapper ships an update monthly, PCT Sampling every 3 weeks. The most recent releases landed on September 5, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | GK Field Mapper | PCT Sampling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/gk-field-mapper/id6448194019/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/pct-sampling/id6511208417/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Freemium | **Free** |
| Size | 64 MB | 84 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 |


### PCT Sampling

[App page](https://appshunter.io/ios/app/pct-sampling/id6511208417)

This mobile tool simplifies soil sampling fieldwork by allowing users to create, edit, and delete soil plans. It offers robust offline capabilities, enabling work in remote locations and seamless synchronization of changes once back online.

**Highlights:** View, create, edit, and delete soil plans, Offline work with local content download, Manage changes and sync with server, Seamlessly sync offline changes, Navigate to specific points with precision

**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 PCT Sampling free?

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

### Which has better reviews, GK Field Mapper or PCT Sampling?

GK Field Mapper and PCT Sampling are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

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

Neither GK Field Mapper nor PCT Sampling shows ads.

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

GK Field Mapper ships an update monthly, and PCT Sampling every 3 weeks. Most recently, GK Field Mapper was updated on September 5, 2026 and PCT Sampling on August 17, 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.*