# Diamond Diary Notes With Lock vs Secret Diary

The clearest difference is rating: Secret Diary at 5.0 against Diamond Diary Notes With Lock's 4.4. Secret Diary also leads on ads (none vs shown) and review sentiment (70% vs 50%). Diamond Diary Notes With Lock's advantage is ratings volume (8.6K vs 1). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Diamond Diary Notes With Lock sells 8 in-app purchases, starting at $3.49 per month and Secret Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Secret Diary holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Diamond Diary Notes With Lock has 8.6K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Diamond Diary Notes With Lock's written reviews are positive against 70% of Secret Diary's.

Diamond Diary Notes With Lock ships an update every 5 months, Secret Diary every 3 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Diamond Diary Notes With Lock | Secret Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (8.6K ratings)](https://appshunter.io/ios/app/diamond-diary-notes-with-lock/id1437141637/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/secret-diary-password-notes/id6445909382/reviews)** |
| Number of ratings | **8.6K** | 1 |
| Positive reviews | 49.6% of reviews | **70.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 123 MB | 66 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Milica Petrovic](https://appshunter.io/developer/1436961056) | [伟 葛](https://appshunter.io/developer/1028908732) |

## What reviewers say

### Diamond Diary Notes With Lock

[App page](https://appshunter.io/ios/app/diamond-diary-notes-with-lock/id1437141637)

Securely record your thoughts, memories, and ideas in a private digital journal. Personalize entries with photos, emoticons, and custom fonts. Protect your secrets with password, pattern, or biometric locks.

**Highlights:** Password/Biometric Lock, Add Photos & Emoticons, Customizable Fonts & Backgrounds, iCloud Sync, Search & Calendar View, Write & Edit Entries

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $3.49 | per month |
| 1 Week Subscription | $6.99 | per 7 days |
| 6 Months Subscription | $17.99 | per 6 months |
| 1 Year Subscription | $28.99 | per year |
| 1 Year Subscription | $29.99 | per year |
| 1 Year Subscription | $59.99 | per year |
| Lock Diary | $1.99 | one-time |
| Remove ADs | $1.99 | one-time |

**What reviewers like**

- 💎 Customizable fonts and images
- 📆 Organized calendar view
- 🔒 Secure diary for personal thoughts
- 📝 Convenient digital diary on phone

**What reviewers complain about**

- 💰 Paid lock feature
- 🔍 Lack of free privacy options
- 📢 Excessive ads
- 🤔 Confusing date display

**Reported bugs**

- Crashes and unexpected shutdowns
- Date display issues

**Requested features**

- Free locking option
- Fingerprint/passcode protection
- Improved scrolling and editing
- More font and customization choices


### 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 (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $2.99 | one-time |


## Frequently asked questions

### Is Diamond Diary Notes With Lock free?

Diamond Diary Notes With Lock is free to download, with in-app purchases available.

### Is Secret Diary free?

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

### Which has better reviews, Diamond Diary Notes With Lock or Secret Diary?

Secret Diary is rated higher. Diamond Diary Notes With Lock averages 4.4 out of 5 from 8.6K ratings, while Secret Diary averages 5.0 from 1 ratings.

### Do Diamond Diary Notes With Lock or Secret Diary have ads?

Diamond Diary Notes With Lock shows ads; Secret Diary does not.

### Which is updated more often, Diamond Diary Notes With Lock or Secret Diary?

Diamond Diary Notes With Lock ships an update every 5 months, and Secret Diary every 3 months. Most recently, Diamond Diary Notes With Lock was updated on October 14, 2026 and Secret Diary on October 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.*