# Biosphere 2 vs LEctenna Tester

Biosphere 2 and LEctenna Tester are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Biosphere 2 | LEctenna Tester |
| --- | --- | --- |
| 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 | — |
| Monetization | Free | — |
| Size | 137 MB | 4 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [University of Arizona](https://appshunter.io/developer/437682109) | [Sirius Noel Maria Vollenweider](https://appshunter.io/developer/1563189614) |

## 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


### LEctenna Tester

[App page](https://appshunter.io/ios/app/lectenna-tester/id1617380697)

**In-app purchases:** none


## Frequently asked questions

### Is Biosphere 2 free?

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

### Is LEctenna Tester free?

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

### Do Biosphere 2 or LEctenna Tester have ads?

Neither Biosphere 2 nor LEctenna Tester shows ads.

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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.*