# US Ecotopia vs OpenBioMaps Forms

The clearest difference is iOS requirement: US Ecotopia at 15.0 against OpenBioMaps Forms's 17.0. 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.

US Ecotopia ships an update every 10 days, OpenBioMaps Forms weekly. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | US Ecotopia | OpenBioMaps Forms |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Size | 137 MB | 45 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Druid Tech, LLC](https://appshunter.io/developer/1683282655) | [ECOLLAB](https://appshunter.io/developer/1777494456) |

## What reviewers say

### US Ecotopia

[App page](https://appshunter.io/ios/app/us-ecotopia-animal-tracker/id6448024917)

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

**In-app purchases:** none


### OpenBioMaps Forms

[App page](https://appshunter.io/ios/app/openbiomaps-forms/id6737706732)

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

**In-app purchases:** none


## Frequently asked questions

### Is US Ecotopia free?

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

### Is OpenBioMaps Forms free?

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

### Do US Ecotopia or OpenBioMaps Forms have ads?

Neither US Ecotopia nor OpenBioMaps Forms shows ads.

### Which is updated more often, US Ecotopia or OpenBioMaps Forms?

US Ecotopia ships an update every 10 days, and OpenBioMaps Forms weekly. Most recently, US Ecotopia was updated on September 17, 2026 and OpenBioMaps Forms on September 12, 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.*