# TransPOD vs Earth Science Systems Surveyor

The clearest difference is iOS requirement: TransPOD at 9.3 against Earth Science Systems Surveyor's 15.5. On price, update cadence, ads and in-app purchases there is nothing between them.

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

TransPOD ships an update every 6 weeks, Earth Science Systems Surveyor every 3 months. The most recent releases landed on October 26, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | TransPOD | Earth Science Systems Surveyor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Size | 46 MB | 55 MB |
| Requires iOS | **9.3** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TransGroup](https://appshunter.io/developer/577284057) | [Earth Science Systems, LLC](https://appshunter.io/developer/1721440272) |

## What reviewers say

### TransPOD

[App page](https://appshunter.io/ios/app/transpod/id978484944)

**Features:** macOS Compatibility

**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 TransPOD free?

TransPOD 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 TransPOD or Earth Science Systems Surveyor have ads?

Neither TransPOD nor Earth Science Systems Surveyor shows ads.

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

TransPOD ships an update every 6 weeks, and Earth Science Systems Surveyor every 3 months. Most recently, TransPOD was updated on October 26, 2026 and Earth Science Systems Surveyor on November 4, 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.*