# geotimescale 2 vs GMDE Lite

The clearest difference is rating: GMDE Lite at 5.0 against geotimescale 2's 4.5. GMDE Lite also leads on update cadence (every 3 weeks vs every 2 months). geotimescale 2's advantage is ratings volume (10 vs 2) and iOS requirement (8.4 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

GMDE Lite holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: geotimescale 2 has 10 ratings behind it against 2, so its average is the more settled of the two.

geotimescale 2 ships an update every 2 months, GMDE Lite every 3 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | geotimescale 2 | GMDE Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (10 ratings)](https://appshunter.io/ios/app/geotimescale-2/id1050762680/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gmde-lite/id1557325241/reviews)** |
| Number of ratings | **10** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 48 MB |
| Requires iOS | **8.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DK Tasa, Inc.](https://appshunter.io/developer/1445438605) | [Richard Allmendinger](https://appshunter.io/developer/1194772609) |

## 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


### GMDE Lite

[App page](https://appshunter.io/ios/app/gmde-lite/id1557325241)

This app allows users to record geological data, including points of interest, orientations, and contacts, with detailed annotations and photos. It offers multiple methods for orientation input and data visualization, with seamless integration for data exchange across devices and platforms.

**Highlights:** Record points of interest with photos and descriptions, Annotate photos and create digital sketches, Multiple methods for orientation input, Data import/export from various sources, Visualize orientation data on equal area projection, Use device as a rangefinder for distance calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is geotimescale 2 free?

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

### Is GMDE Lite free?

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

### Which has better reviews, geotimescale 2 or GMDE Lite?

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

### Do geotimescale 2 or GMDE Lite have ads?

Neither geotimescale 2 nor GMDE Lite shows ads.

### Which is updated more often, geotimescale 2 or GMDE Lite?

geotimescale 2 ships an update every 2 months, and GMDE Lite every 3 weeks. Most recently, geotimescale 2 was updated on October 7, 2026 and GMDE Lite on October 9, 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.*