# Diamond Diary Notes With Lock vs Cat Meow Interpreter

The clearest difference is ads: Cat Meow Interpreter at none against Diamond Diary Notes With Lock's shown. On price, update cadence, in-app purchases and device support 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 Cat Meow Interpreter sells 3 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on September 27, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Diamond Diary Notes With Lock | Cat Meow Interpreter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8.6K ratings)](https://appshunter.io/ios/app/diamond-diary-notes-with-lock/id1437141637/reviews)** | — |
| Number of ratings | **8.6K** | — |
| Positive reviews | 49.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 123 MB | 29 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Milica Petrovic](https://appshunter.io/developer/1436961056) | [Hanva,LLC](https://appshunter.io/developer/1808930111) |

## 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


### Cat Meow Interpreter

[App page](https://appshunter.io/ios/app/cat-meow-interpreter/id6470340184)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Week Subscription Plan | $5.99 | per 7 days |
| One Month Subscription Plan | $14.99 | per month |
| One Year Subscription Plan | $49.99 | per year |


## 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 Cat Meow Interpreter free?

Cat Meow Interpreter is free to download, with in-app purchases available.

### Do Diamond Diary Notes With Lock or Cat Meow Interpreter have ads?

Diamond Diary Notes With Lock shows ads; Cat Meow Interpreter does not.

### Which is updated more often, Diamond Diary Notes With Lock or Cat Meow Interpreter?

Diamond Diary Notes With Lock ships an update every 5 months, and Cat Meow Interpreter every 5 months. Most recently, Diamond Diary Notes With Lock was updated on September 27, 2026 and Cat Meow Interpreter on September 18, 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.*