# Private Notes. vs Secret Diary

The clearest difference is review sentiment: Secret Diary at 70% against Private Notes.'s 14%. Secret Diary also leads on ads (none vs shown). Private Notes.'s advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15). On price, update cadence and device support there is nothing between them.

Both are free to download. Secret Diary sells 3 in-app purchases, starting at $0.99 per month. Private Notes. asks for nothing beyond the download.

Private Notes. ships an update every 2 months, Secret Diary every 3 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Private Notes. | Secret Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/secret-diary-password-notes/id6445909382/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 14.3% of reviews | **70.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 16 MB | 66 MB |
| Requires iOS | **12.0** | 15 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [WALABOK LLC](https://appshunter.io/developer/913827467) | [伟 葛](https://appshunter.io/developer/1028908732) |

## What reviewers say

### Private Notes.

[App page](https://appshunter.io/ios/app/private-notes/id1539765495)

Securely store your personal thoughts, ideas, and text with a passcode or biometric authentication. This app offers intuitive text editing tools and a straightforward interface for organizing timestamped notes.

**Highlights:** Biometric and passcode security, Intuitive copy/paste/cut, Text formatting (underline, bold, italic), Timestamped notes, Straightforward user interface

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

**In-app purchases:** none


### Secret Diary

[App page](https://appshunter.io/ios/app/secret-diary-password-notes/id6445909382)

Securely record your daily life and protect your privacy with this easy-to-use digital journal. Customize entries with beautiful fonts and quickly find past notes using content search. It offers password protection for exclusive access.

**Highlights:** Password protection, Secure diary entries, Customizable fonts, Content search, User-friendly interface, Privacy protection

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $0.99 | per month |
| Yearly Premium | $3.99 | per year |
| Lifetime Premium | $5.99 | one-time |


## Frequently asked questions

### Is Private Notes. free?

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

### Is Secret Diary free?

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

### Do Private Notes. or Secret Diary have ads?

Private Notes. shows ads; Secret Diary does not.

### Which is updated more often, Private Notes. or Secret Diary?

Private Notes. ships an update every 2 months, and Secret Diary every 3 months. Most recently, Private Notes. was updated on November 3, 2026 and Secret Diary on November 7, 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.*