ICS vs GST[AR]
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ICS
Access authoritative geological time scale data and information on Global Boundary Stratotype Sections and Points (GSSPs). Explore charts, detailed GSSP information, and relevant statistics.
- Demonstration of ICS chart
- Detailed GSSP information
- GSSP statistics
- Authoritative data service
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ICS Timescale is the official APP of the International Commission on Stratigraphy (ICS). It is designed to provide authoritative data service of ICS. The main functions include: 1) Demonstration of the ICS chart. 2) Detail information about each GSSP. 3) Statistics of the GSSPs.
GST[AR]
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.
- Browse geological models
- View models in AR
- Rotate and scale models
- Highlight model features
- Share AR sessions
- Customize AR settings
- Add custom model sources
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GST[AR] allows you to browse, download, view, and share geological models in augmented reality. Browse Browse through available models and their features to find a nice selection to present in AR. Models are retrieved from running instances of GST Web. Don’t worry, there are default sources added already, so you can get started right away. Hint: If you see a „Visit“ button near a section of models, you can tap it to learn more about the institution that provides these models for you! When you select a model, you will find a list of features waiting for you. Make your selection and off you go to the AR view. View As soon as the features are downloaded, you will be able to place them on any horizontal surface in AR. Use gestures or sliders to rotate and scale your model. Tap on individual parts to learn about their name or use the legend to even highlight individual features. Superelevation is available via sliders as well! Share When you have placed a feature selection in AR, you get the option to share your session with others! Use the share button to let other peers join your session, synchronize your worlds and you will be looking at the same model in no time. Changes to the model rotation, scale and location will be synced automatically between all peers in the session. Hold down on a model to place your marker to point towards the feature of interest or highlight a certain feature via the legend for all other peers. Settings and customization Customize your experience by changing a couple of settings. In the settings menu, you will have the possibility to change aspects of scaling, how high the models float above the surface or even enable such cool features like "people occlusion" that make your AR scene even more immersive! Furthermore, if you want to access models from a GST Web instance that is not present in the app, you have the possibility to add endpoints of your own.
Screenshots
Verdict
The clearest difference is review sentiment: GST[AR] at 100% against ICS's 50%. GST[AR] also leads on rating (5.0 vs 4.3). ICS's advantage is update cadence (every 2 months vs every 4 months) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 4.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 50% of ICS's written reviews are positive against 100% of GST[AR]'s.
ICS ships an update every 2 months, GST[AR] every 4 months. The most recent releases landed on October 21, 2026 and October 26, 2026 respectively.
| Parameter | ICS | GST[AR] |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 20 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 隽轩 樊 | GiGa infosystems GmbH |
Customer experience
ICS
GST[AR]
In-app purchases
ICS
No in-app purchases
GST[AR]
No in-app purchases

![GST[AR] GST[AR]](https://cdn3.appshunter.io/i/Purple221/684d79799080d1e874f2bd30711bebcc/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/512x0w.png)




