# SlimeSanctuary vs Backyard Biome

The clearest difference is price: SlimeSanctuary at Free against Backyard Biome's $2.99. Backyard Biome's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

SlimeSanctuary is free to download; Backyard Biome costs $2.99 up front. SlimeSanctuary sells 1 one-off in-app purchase. Backyard Biome asks for nothing beyond the download.

## The numbers

| Metric | SlimeSanctuary | Backyard Biome |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | — | Monthly |
| Size | 4 MB | 102 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Christian Pedersen](https://appshunter.io/developer/1883227582) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### SlimeSanctuary

[App page](https://appshunter.io/ios/app/slimesanctuary/id6776007054)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sanctuary Keeper | $4.99 | one-time |


### Backyard Biome

[App page](https://appshunter.io/ios/app/backyard-biome-ecosystem-sim/id6795263430)

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

**In-app purchases:** none


## Frequently asked questions

### Is SlimeSanctuary free?

SlimeSanctuary is free to download, with in-app purchases available.

### Is Backyard Biome free?

Backyard Biome costs $2.99, with no in-app purchases.

### Do SlimeSanctuary or Backyard Biome have ads?

SlimeSanctuary shows ads; Backyard Biome does not.

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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.*