# Sound Monkey vs Secret Notepad with Password

The clearest difference is in-app purchases: Sound Monkey at none against Secret Notepad with Password's 1. Sound Monkey also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). Secret Notepad with Password's advantage is update cadence (monthly vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Secret Notepad with Password sells 1 one-off in-app purchase. Sound Monkey asks for nothing beyond the download.

Sound Monkey ships an update every 4 months, Secret Notepad with Password monthly. The most recent releases landed on October 14, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Sound Monkey | Secret Notepad with Password |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/secret-notepad-with-password/id6480199456/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 65 MB | 8 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [National Foundation for the Deaf Inc](https://appshunter.io/developer/1485507281) | [manabu ueda](https://appshunter.io/developer/1606163236) |

## What reviewers say

### Sound Monkey

[App page](https://appshunter.io/ios/app/sound-monkey/id1485507282)

**Features:** macOS Compatibility

**In-app purchases:** none


### Secret Notepad with Password

[App page](https://appshunter.io/ios/app/secret-notepad-with-password/id6480199456)

Securely store your private thoughts and images with a password-protected vault. Features biometric unlock, screen blurring, and the ability to attach photos directly to notes without saving them to your camera roll.

**Highlights:** Password and biometric authentication, Screen blurring for privacy, Attach photos directly to notes, Photos not saved to camera roll, Undo/redo support, Search functionality, Dark mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Plan(Lifetime) | $2.99 | one-time |


## Frequently asked questions

### Is Sound Monkey free?

Sound Monkey is free to download, with no in-app purchases.

### Is Secret Notepad with Password free?

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

### Do Sound Monkey or Secret Notepad with Password have ads?

Secret Notepad with Password shows ads; Sound Monkey does not.

### Which is updated more often, Sound Monkey or Secret Notepad with Password?

Sound Monkey ships an update every 4 months, and Secret Notepad with Password monthly. Most recently, Sound Monkey was updated on October 14, 2026 and Secret Notepad with Password on October 23, 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.*