# StratLogger vs GST[AR]

The clearest difference is rating: GST[AR] at 5.0 against StratLogger's 3.5. GST[AR] also leads on update cadence (every 4 months vs every 17 months) and device support (3 vs 1). StratLogger's advantage is iOS requirement (14.5 vs 16.4). On price, ratings volume, 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.

GST[AR] holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

StratLogger ships an update every 17 months, GST[AR] every 4 months. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | StratLogger | GST[AR] |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/stratlogger/id1032788660/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gstar/id1519232314/reviews)** |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 18 MB | 2 MB |
| Requires iOS | **14.5** | 16.4 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lafayette](https://appshunter.io/developer/526812327) | [GiGa infosystems GmbH](https://appshunter.io/developer/1519232496) |

## What reviewers say

### StratLogger

[App page](https://appshunter.io/ios/app/stratlogger/id1032788660)

This app helps geologists construct stratigraphic columns digitally, replacing traditional field notebooks. It logs location, links photos to descriptions, and exports data for analysis. Optional tools enhance student learning in the field.

**Highlights:** Construct stratigraphic columns, Log sedimentological and stratigraphic information, Automatically log geo-location data, Link images to lithologic descriptions, Export stratigraphic column as JPEG, Export layer records to CSV, Optional pedagogical tools for student learning

**Features:** macOS Compatibility

**In-app purchases:** none


### GST[AR]

[App page](https://appshunter.io/ios/app/gstar/id1519232314)

Explore and visualize geological models in augmented reality. Browse a selection of models, place them on any surface, and interact with them by rotating, scaling, and highlighting features. Share your AR sessions with others for collaborative exploration.

**Highlights:** Browse geological models, View models in AR, Rotate and scale models, Highlight model features, Share AR sessions, Customize AR settings, Add custom model sources

**In-app purchases:** none


## Frequently asked questions

### Is StratLogger free?

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

### Is GST[AR] free?

GST[AR] is free to download, with no in-app purchases.

### Which has better reviews, StratLogger or GST[AR]?

GST[AR] is rated higher. StratLogger averages 3.5 out of 5 from 2 ratings, while GST[AR] averages 5.0 from 1 ratings.

### Do StratLogger or GST[AR] have ads?

Neither StratLogger nor GST[AR] shows ads.

### Which is updated more often, StratLogger or GST[AR]?

StratLogger ships an update every 17 months, and GST[AR] every 4 months. Most recently, StratLogger was updated on October 5, 2026 and GST[AR] on September 26, 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.*