# Mancos vs geotimescale 2

The clearest difference is price: geotimescale 2 at Free against Mancos's $2.99. geotimescale 2 also leads on iOS requirement (8.4 vs 26.0). Mancos's advantage is rating (5.0 vs 4.5). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

geotimescale 2 is free to download; Mancos costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mancos holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 13 and 10 respectively. Written reviews point the same way: 70% of Mancos's written reviews are positive against 67% of geotimescale 2's.

Mancos ships an update every 4 months, geotimescale 2 every 2 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Mancos | geotimescale 2 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (13 ratings)](https://appshunter.io/ios/app/mancos/id541570878/reviews)** | [4.5 (10 ratings)](https://appshunter.io/ios/app/geotimescale-2/id1050762680/reviews) |
| Number of ratings | **13** | 10 |
| Positive reviews | **70.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 10 MB | 8 MB |
| Requires iOS | 26.0 | **8.4** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hunt Mountain Software](https://appshunter.io/developer/328710008) | [DK Tasa, Inc.](https://appshunter.io/developer/1445438605) |

## What reviewers say

### Mancos

[App page](https://appshunter.io/ios/app/mancos/id541570878)

Explore the geology of the United States and other regions with this app. Access state geological maps, formation data, and stratigraphic columns. Discover local fossil collections directly from your device.

**Highlights:** Interactive geological maps, Searchable by name or GPS, State-level geological data, Geological formation information, Regional stratigraphic columns, Fossil collection discovery

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Mancos free?

Mancos costs $2.99, with no in-app purchases.

### Is geotimescale 2 free?

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

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

Mancos is rated higher. Mancos averages 5.0 out of 5 from 13 ratings, while geotimescale 2 averages 4.5 from 10 ratings.

### Do Mancos or geotimescale 2 have ads?

Neither Mancos nor geotimescale 2 shows ads.

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

Mancos ships an update every 4 months, and geotimescale 2 every 2 months. Most recently, Mancos was updated on October 6, 2026 and geotimescale 2 on October 7, 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.*