# GEO5 Data Collector vs sTEM controller

The clearest difference is iOS requirement: sTEM controller at 13.0 against GEO5 Data Collector's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GEO5 Data Collector ships an update every 3 months, sTEM controller every 5 months. The most recent releases landed on September 23, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | GEO5 Data Collector | sTEM controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/geo5-data-collector/id6446826835/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | — |
| Size | 52 MB | 31 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [FINE spol. s r.o.](https://appshunter.io/developer/1679287610) | [Temcompany ApS](https://appshunter.io/developer/1700820640) |

## What reviewers say

### GEO5 Data Collector

[App page](https://appshunter.io/ios/app/geo5-data-collector/id6446826835)

This application facilitates geological survey data collection in the field. It allows users to input data, utilize maps and GPS, and attach multimedia recordings. Data can be organized using standard or custom templates for any survey type.

**Highlights:** Field data input, Map and GPS integration, Photo, video, and audio recording, Standard and custom data templates, Borehole logging support

**Features:** macOS Compatibility

**In-app purchases:** none


### sTEM controller

[App page](https://appshunter.io/ios/app/stem-controller/id6457210066)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GEO5 Data Collector free?

GEO5 Data Collector is free to download, with no in-app purchases.

### Is sTEM controller free?

sTEM controller is free to download, with no in-app purchases.

### Do GEO5 Data Collector or sTEM controller have ads?

Neither GEO5 Data Collector nor sTEM controller shows ads.

### Which is updated more often, GEO5 Data Collector or sTEM controller?

GEO5 Data Collector ships an update every 3 months, and sTEM controller every 5 months. Most recently, GEO5 Data Collector was updated on September 23, 2026 and sTEM controller on October 12, 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.*