# CoreAI Zoo vs Sandbox Relay

The clearest difference is iOS requirement: Sandbox Relay at 16.4 against CoreAI Zoo's 27.0. 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.

## The numbers

| Metric | CoreAI Zoo | Sandbox Relay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 11 MB | 32 MB |
| Requires iOS | 27.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | +4 | 12+ |
| Developer | [Daisuke Majima](https://appshunter.io/developer/1350309854) | [Eric Boumendil](https://appshunter.io/developer/1116493219) |

## What reviewers say

### CoreAI Zoo

[App page](https://appshunter.io/ios/app/coreai-zoo/id6780135339)

**In-app purchases:** none


### Sandbox Relay

[App page](https://appshunter.io/ios/app/sandbox-relay/id6791522669)

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

**In-app purchases:** none


## Frequently asked questions

### Is CoreAI Zoo free?

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

### Is Sandbox Relay free?

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

### Do CoreAI Zoo or Sandbox Relay have ads?

Neither CoreAI Zoo nor Sandbox Relay 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.*