# Biosphere 2 vs EnKoat Roofing Pro

The clearest difference is update cadence: EnKoat Roofing Pro at every 2 weeks against Biosphere 2's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Biosphere 2 ships an update every 3 months, EnKoat Roofing Pro every 2 weeks. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Biosphere 2 | EnKoat Roofing Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (30 ratings)](https://appshunter.io/ios/app/biosphere-2/id1512454025/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 137 MB | 46 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [University of Arizona](https://appshunter.io/developer/437682109) | [EnKoat](https://appshunter.io/developer/1819143421) |

## What reviewers say

### Biosphere 2

[App page](https://appshunter.io/ios/app/biosphere-2/id1512454025)

Explore the history, architecture, and science of a unique research facility. This family-friendly guide offers an accessible way to learn about its groundbreaking discoveries and 30 years of operation.

**Highlights:** Explore facility history, Learn about architecture, Discover groundbreaking science, Family-friendly guide, Accessible educational content

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

**In-app purchases:** none


### EnKoat Roofing Pro

[App page](https://appshunter.io/ios/app/enkoat-roofing-pro/id6746953228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Biosphere 2 free?

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

### Is EnKoat Roofing Pro free?

EnKoat Roofing Pro is free to download, with no in-app purchases.

### Do Biosphere 2 or EnKoat Roofing Pro have ads?

Neither Biosphere 2 nor EnKoat Roofing Pro shows ads.

### Which is updated more often, Biosphere 2 or EnKoat Roofing Pro?

Biosphere 2 ships an update every 3 months, and EnKoat Roofing Pro every 2 weeks. Most recently, Biosphere 2 was updated on October 20, 2026 and EnKoat Roofing Pro on October 6, 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.*