# iRon Note Secret Hidden Folder vs Shadow Vault

The clearest difference is review sentiment: iRon Note Secret Hidden Folder at 63% against Shadow Vault's 0%. iRon Note Secret Hidden Folder also leads on in-app purchases (none vs 1) and ads (none vs shown). Shadow Vault's advantage is update cadence (every 5 weeks vs every 47 months). On price and device support there is nothing between them.

Both are free to download. Shadow Vault sells 1 one-off in-app purchase. iRon Note Secret Hidden Folder asks for nothing beyond the download.

iRon Note Secret Hidden Folder ships an update every 47 months, Shadow Vault every 5 weeks. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | iRon Note Secret Hidden Folder | Shadow Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/iron-note-secret-hidden-folder/id759137887/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | **62.5% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 47 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 13 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Infinite Wave Media, LLC](https://appshunter.io/developer/495187294) | [Tung Vu](https://appshunter.io/developer/870117448) |

## What reviewers say

### iRon Note Secret Hidden Folder

[App page](https://appshunter.io/ios/app/iron-note-secret-hidden-folder/id759137887)

Securely store your private and secret notes with a 5-digit passcode. Organize your thoughts and keep them away from unwanted viewers. This app offers a safe space for your most valuable information.

**Highlights:** Create secured notes, Organize lists, Ultra secure 5 digit passcode, Full Retina display support

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

**In-app purchases:** none


### Shadow Vault

[App page](https://appshunter.io/ios/app/shadow-vault/id1561340715)

Securely store your private notes, photos, videos, and contacts in one place. Organize your hidden data with a powerful tagging system and access it easily with biometric authentication. Sync your information across devices for seamless management.

**Highlights:** Biometric lock (Touch ID/Face ID), iCloud sync, Markdown support for notes, Delete original media after import, Omni toolbar for editing, Tagging system for organization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisement | $7.99 | one-time |


## Frequently asked questions

### Is iRon Note Secret Hidden Folder free?

iRon Note Secret Hidden Folder is free to download, with no in-app purchases.

### Is Shadow Vault free?

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

### Do iRon Note Secret Hidden Folder or Shadow Vault have ads?

Shadow Vault shows ads; iRon Note Secret Hidden Folder does not.

### Which is updated more often, iRon Note Secret Hidden Folder or Shadow Vault?

iRon Note Secret Hidden Folder ships an update every 47 months, and Shadow Vault every 5 weeks. Most recently, iRon Note Secret Hidden Folder was updated on October 20, 2026 and Shadow Vault on October 15, 2026.

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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.*