# SealSkin vs Proof Vault Docs

The clearest difference is in-app purchases: SealSkin at none against Proof Vault Docs's 2. SealSkin also leads on device support. Proof Vault Docs's advantage is iOS requirement (17.6 vs 26.0). On price there is nothing between them.

Both are free to download. Proof Vault Docs sells 2 in-app purchases, starting at $4.99 per month. SealSkin asks for nothing beyond the download.

## The numbers

| Metric | SealSkin | Proof Vault Docs |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Size | 3 MB | 1 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | **iPhone, iPad** | — |
| Age rating | 17+ | 4+ |
| Developer | [Ryan Kuba](https://appshunter.io/developer/1871464574) | [NICHOLAS ERWIN HEITKAMP](https://appshunter.io/developer/1867627286) |

## What reviewers say

### SealSkin

[App page](https://appshunter.io/ios/app/sealskin/id6758210210)

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

**In-app purchases:** none


### Proof Vault Docs

[App page](https://appshunter.io/ios/app/proof-vault-docs/id6760797072)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $49.99 | per year |


## Frequently asked questions

### Is SealSkin free?

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

### Is Proof Vault Docs free?

Proof Vault Docs is free to download, with in-app purchases available.

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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.*