# geotimescale 2 vs ICS

geotimescale 2 and ICS both sit at 4.5 stars, but that hides the real split: 67% of geotimescale 2's written reviews are positive against 50% of ICS's. geotimescale 2 also leads on ratings volume (10 vs 3). On price, rating, update cadence and ads there is nothing between them.

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

geotimescale 2 holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 67% of geotimescale 2's written reviews are positive against 50% of ICS's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | geotimescale 2 | ICS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (10 ratings)](https://appshunter.io/ios/app/geotimescale-2/id1050762680/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/ics-timescale/id1469322356/reviews) |
| Number of ratings | **10** | 3 |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 8 MB | 20 MB |
| Requires iOS | **8.4** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DK Tasa, Inc.](https://appshunter.io/developer/1445438605) | [隽轩 樊](https://appshunter.io/developer/1463394496) |

## What reviewers say

### geotimescale 2

[App page](https://appshunter.io/ios/app/geotimescale-2/id1050762680)

Access a comprehensive geologic time scale for Earth's history, detailing eons, eras, periods, epochs, and ages with their corresponding dates. Ideal for students and geology enthusiasts, it provides quick reference and additional information on significant historical events.

**Highlights:** Geologic time scale reference, Eons, eras, periods, epochs, and ages, Numerical dates for time divisions, Information on historical phenomena, Offline access, Two different view options

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

**In-app purchases:** none


### ICS

[App page](https://appshunter.io/ios/app/ics-timescale/id1469322356)

Access authoritative geological time scale data and information on Global Boundary Stratotype Sections and Points (GSSPs). Explore charts, detailed GSSP information, and relevant statistics.

**Highlights:** Demonstration of ICS chart, Detailed GSSP information, GSSP statistics, Authoritative data service

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is geotimescale 2 free?

geotimescale 2 is free to download, with no in-app purchases.

### Is ICS free?

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

### Which has better reviews, geotimescale 2 or ICS?

geotimescale 2 is rated higher. geotimescale 2 averages 4.5 out of 5 from 10 ratings, while ICS averages 4.3 from 3 ratings.

### Do geotimescale 2 or ICS have ads?

Neither geotimescale 2 nor ICS shows ads.

### Which is updated more often, geotimescale 2 or ICS?

geotimescale 2 ships an update every 2 months, and ICS every 2 months. Most recently, geotimescale 2 was updated on October 7, 2026 and ICS on October 21, 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.*