# Secret Diary with Locks vs MemoPass

The clearest difference is in-app purchases: MemoPass at none against Secret Diary with Locks's 1. MemoPass also leads on update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Secret Diary with Locks sells 1 in-app purchase, starting at $0.99 per year. MemoPass asks for nothing beyond the download.

Secret Diary with Locks ships an update every 3 months, MemoPass every 2 weeks. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Secret Diary with Locks | MemoPass |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 238 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Harshad Jadav](https://appshunter.io/developer/1687259507) | [PRT SISTEMI SRL](https://appshunter.io/developer/972429077) |

## What reviewers say

### Secret Diary with Locks

[App page](https://appshunter.io/ios/app/secret-diary-with-locks/id6449743044)

Securely record your thoughts, memories, and personal moments with this private journal app. Protect your entries with a password, PIN, or biometric authentication. All data is stored locally and encrypted for complete privacy.

**Highlights:** Password, PIN, or biometric unlock, AES 256-bit encryption, Offline local storage, Unlimited entries, Advanced search, No internet permission

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Ad-Free - Annual | $0.99 | per year |


### MemoPass

[App page](https://appshunter.io/ios/app/memopass/id6504022461)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Secret Diary with Locks free?

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

### Is MemoPass free?

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

### Do Secret Diary with Locks or MemoPass have ads?

Neither Secret Diary with Locks nor MemoPass shows ads.

### Which is updated more often, Secret Diary with Locks or MemoPass?

Secret Diary with Locks ships an update every 3 months, and MemoPass every 2 weeks. Most recently, Secret Diary with Locks was updated on October 25, 2026 and MemoPass on October 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.*