# Ghost Detector Prank App vs Diamond Diary Notes With Lock

The clearest difference is rating: Diamond Diary Notes With Lock at 4.4 against Ghost Detector Prank App's 3.0. Diamond Diary Notes With Lock also leads on update cadence (every 5 months vs every 59 months) and ratings volume (8.6K vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Ghost Detector Prank App sells 3 in-app purchases, starting at $4.99 per 7 days and Diamond Diary Notes With Lock sells 8 in-app purchases, starting at $3.49 per month. Whichever you choose, the download price is not the number that matters.

Diamond Diary Notes With Lock holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: Diamond Diary Notes With Lock has 8.6K ratings behind it against 3, so its average is the more settled of the two.

Ghost Detector Prank App ships an update every 59 months, Diamond Diary Notes With Lock every 5 months. The most recent releases landed on September 16, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Ghost Detector Prank App | Diamond Diary Notes With Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/ghost-detector-prank-app/id1177819178/reviews) | **[4.4 (8.6K ratings)](https://appshunter.io/ios/app/diamond-diary-notes-with-lock/id1437141637/reviews)** |
| Number of ratings | 3 | **8.6K** |
| Positive reviews | — | 49.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 59 months | **Every 5 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 123 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Sandeep Bhandari](https://appshunter.io/developer/794284640) | [Milica Petrovic](https://appshunter.io/developer/1436961056) |

## What reviewers say

### Ghost Detector Prank App

[App page](https://appshunter.io/ios/app/ghost-detector-prank-app/id1177819178)

This entertainment app simulates paranormal detection for pranks. It features a radar scan, thumb scanner, EMF meter, and spirit box to create a spooky atmosphere. Session logs and spooky stories enhance the prank experience.

**Highlights:** Simulated Radar Scan, Thumbprint Scanner, EMF Meter simulation, Spirit Box with EVP, Session Logging, Spooky Stories Library

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Annual | $29.99 | per year |
| Forever Pro | $99.99 | one-time |


### 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


## Frequently asked questions

### Is Ghost Detector Prank App free?

Ghost Detector Prank App is free to download, with in-app purchases available.

### Is Diamond Diary Notes With Lock free?

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

### Which has better reviews, Ghost Detector Prank App or Diamond Diary Notes With Lock?

Diamond Diary Notes With Lock is rated higher. Ghost Detector Prank App averages 3.0 out of 5 from 3 ratings, while Diamond Diary Notes With Lock averages 4.4 from 8.6K ratings.

### Do Ghost Detector Prank App or Diamond Diary Notes With Lock have ads?

Both Ghost Detector Prank App and Diamond Diary Notes With Lock show ads.

### Which is updated more often, Ghost Detector Prank App or Diamond Diary Notes With Lock?

Ghost Detector Prank App ships an update every 59 months, and Diamond Diary Notes With Lock every 5 months. Most recently, Ghost Detector Prank App was updated on September 16, 2026 and Diamond Diary Notes With Lock on September 27, 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.*