# SHADOW PROTOCOL vs Peekadoor

The clearest difference is in-app purchases: SHADOW PROTOCOL at none against Peekadoor's 8. SHADOW PROTOCOL also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Peekadoor sells 8 one-off in-app purchases. SHADOW PROTOCOL asks for nothing beyond the download.

## The numbers

| Metric | SHADOW PROTOCOL | Peekadoor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Size | 367 MB | 729 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [云鹏 黄](https://appshunter.io/developer/1894905059) | [EREN YAMIC](https://appshunter.io/developer/6812616601) |

## What reviewers say

### SHADOW PROTOCOL

[App page](https://appshunter.io/ios/app/shadow-protocol-zero/id6794192148)

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

**In-app purchases:** none


### Peekadoor

[App page](https://appshunter.io/ios/app/peekadoor-halloween-horror/id6818009998)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Handful of Candy | $0.99 | one-time |
| Starter Pack | $1.99 | one-time |
| Candy Bag | $4.99 | one-time |
| Night Pass: Halloween | $4.99 | one-time |
| Cauldron | $9.99 | one-time |
| Halloween Set | $9.99 | one-time |
| Trunk | $19.99 | one-time |
| Harrow's Hoard | $49.99 | one-time |


## Frequently asked questions

### Is SHADOW PROTOCOL free?

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

### Is Peekadoor free?

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

### Do SHADOW PROTOCOL or Peekadoor have ads?

Neither SHADOW PROTOCOL nor Peekadoor 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.*