# iRon Note Secret Hidden Folder vs FlutterUtility Notes

The clearest difference is iOS requirement: iRon Note Secret Hidden Folder at 8.0 against FlutterUtility Notes's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 47 months. The most recent releases landed on August 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | iRon Note Secret Hidden Folder | FlutterUtility Notes |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | Every 47 months |
| Monetization | Free | — |
| Size | 6 MB | 22 MB |
| Requires iOS | **8.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Infinite Wave Media, LLC](https://appshunter.io/developer/495187294) | [EncoreSky Technologies](https://appshunter.io/developer/1241856915) |

## 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


### FlutterUtility Notes

[App page](https://appshunter.io/ios/app/flutterutility-notes/id1638289634)

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 FlutterUtility Notes free?

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

### Do iRon Note Secret Hidden Folder or FlutterUtility Notes have ads?

Neither iRon Note Secret Hidden Folder nor FlutterUtility Notes shows ads.

### Which is updated more often, iRon Note Secret Hidden Folder or FlutterUtility Notes?

iRon Note Secret Hidden Folder ships an update every 47 months, and FlutterUtility Notes every 47 months. Most recently, iRon Note Secret Hidden Folder was updated on August 25, 2026 and FlutterUtility Notes on September 24, 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.*