# Biosphere 2 vs RisenSaviorAZ

The clearest difference is update cadence: Biosphere 2 at every 3 months against RisenSaviorAZ's every 9 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, RisenSaviorAZ every 9 months. The most recent releases landed on June 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Biosphere 2 | RisenSaviorAZ |
| --- | --- | --- |
| 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 9 months |
| Monetization | Free | — |
| Size | 132 MB | 51 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [University of Arizona](https://appshunter.io/developer/437682109) | [Risen Savior Lutheran Church (AZ)](https://appshunter.io/developer/1715544624) |

## 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

**In-app purchases:** none


### RisenSaviorAZ

[App page](https://appshunter.io/ios/app/risensavioraz/id6471528323)

**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 RisenSaviorAZ free?

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

### Do Biosphere 2 or RisenSaviorAZ have ads?

Neither Biosphere 2 nor RisenSaviorAZ shows ads.

### Which is updated more often, Biosphere 2 or RisenSaviorAZ?

Biosphere 2 ships an update every 3 months, and RisenSaviorAZ every 9 months. Most recently, Biosphere 2 was updated on June 11, 2026 and RisenSaviorAZ on September 9, 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.*