# Entropy vs Pentomino's Vault

The clearest difference is in-app purchases: Pentomino's Vault at none against Entropy's 4. Pentomino's Vault also leads on iOS requirement (15.1 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Entropy sells 4 one-off in-app purchases. Pentomino's Vault asks for nothing beyond the download.

## The numbers

| Metric | Entropy | Pentomino's Vault |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 6 MB | 40 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Erdener Uyan](https://appshunter.io/developer/1843571074) | [JESUS MARTIN TORIBIO](https://appshunter.io/developer/6793522910) |

## What reviewers say

### Entropy

[App page](https://appshunter.io/ios/app/entropy-zero/id6757635585)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Emergency Kit | $0.99 | one-time |
| Hacker Bundle | $2.99 | one-time |
| Developer Access | $4.99 | one-time |
| Survival Mode | $9.99 | one-time |


### Pentomino's Vault

[App page](https://appshunter.io/ios/app/pentominos-vault/id6794101354)

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

**In-app purchases:** none


## Frequently asked questions

### Is Entropy free?

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

### Is Pentomino's Vault free?

Pentomino's Vault is free to download, with no in-app purchases.

### Do Entropy or Pentomino's Vault have ads?

Neither Entropy nor Pentomino's Vault shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*