# Glossmeter vs Earth Science Systems Surveyor

The clearest difference is ads: Earth Science Systems Surveyor at none against Glossmeter's shown. Earth Science Systems Surveyor also leads on update cadence (every 3 months vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Glossmeter ships an update every 6 months, Earth Science Systems Surveyor every 3 months. The most recent releases landed on October 25, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Glossmeter | Earth Science Systems Surveyor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 376 MB | 55 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Screening Eagle Technologies](https://appshunter.io/developer/1515215362) | [Earth Science Systems, LLC](https://appshunter.io/developer/1721440272) |

## What reviewers say

### Glossmeter

[App page](https://appshunter.io/ios/app/glossmeter/id1491697382)

**In-app purchases:** none


### Earth Science Systems Surveyor

[App page](https://appshunter.io/ios/app/earth-science-systems-surveyor/id6474365145)

**In-app purchases:** none


## Frequently asked questions

### Is Glossmeter free?

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

### Is Earth Science Systems Surveyor free?

Earth Science Systems Surveyor is free to download, with no in-app purchases.

### Do Glossmeter or Earth Science Systems Surveyor have ads?

Glossmeter shows ads; Earth Science Systems Surveyor does not.

### Which is updated more often, Glossmeter or Earth Science Systems Surveyor?

Glossmeter ships an update every 6 months, and Earth Science Systems Surveyor every 3 months. Most recently, Glossmeter was updated on October 25, 2026 and Earth Science Systems Surveyor on September 15, 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.*