# My Diary With Lock vs marimo Knock

The clearest difference is in-app purchases: marimo Knock at none against My Diary With Lock's 3. marimo Knock also leads on update cadence (every 5 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. My Diary With Lock sells 3 in-app purchases, starting at $1.99 per month. marimo Knock asks for nothing beyond the download.

My Diary With Lock ships an update every 3 months, marimo Knock every 5 days. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | My Diary With Lock | marimo Knock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.8K ratings)](https://appshunter.io/ios/app/my-diary-with-lock/id6737590485/reviews)** | — |
| Number of ratings | **1.8K** | — |
| Positive reviews | 91.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 22 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEETFIRE LIMITED](https://appshunter.io/developer/1861677709) | [SeongChan Joo](https://appshunter.io/developer/6795682041) |

## What reviewers say

### My Diary With Lock

[App page](https://appshunter.io/ios/app/my-diary-with-lock/id6737590485)

This app provides a secure and private space to record daily thoughts, moods, and memories. It offers password protection, mood tracking with emotion icons, and a calendar view to revisit past entries. Customize your journal with various artistic styles.

**Highlights:** Password and Face ID protection, Mood tracking with emotion icons, Quick notes with photos and emojis, Calendar view for browsing entries, Customizable fonts, backgrounds, and covers

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly VIP | $1.99 | per month |
| Yearly VIP | $7.99 | per year |
| Lifetime VIP | $9.99 | one-time |

**What reviewers like**

- 👍 Cute and aesthetically pleasing design
- 🔒 Secure with password protection
- 💡 Ability to customize fonts and backgrounds
- 🚀 Fast and easy to use
- 👍 Helpful for journaling and note-taking

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 💡 Limited selection of journal cover options
- 🐛 Font settings not always retained
- 💡 Lack of backup and restore functionality

**Reported bugs**

- Submitted diary entries sometimes reset font settings
- Occasional data loss when switching devices

**Requested features**

- Add more journal cover options
- Implement backup and restore functionality
- Improve font customization options
- Introduce a dark mode theme


### marimo Knock

[App page](https://appshunter.io/ios/app/marimo-knock/id6795682039)

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

**In-app purchases:** none


## Frequently asked questions

### Is My Diary With Lock free?

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

### Is marimo Knock free?

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

### Do My Diary With Lock or marimo Knock have ads?

Neither My Diary With Lock nor marimo Knock shows ads.

### Which is updated more often, My Diary With Lock or marimo Knock?

My Diary With Lock ships an update every 3 months, and marimo Knock every 5 days. Most recently, My Diary With Lock was updated on October 18, 2026 and marimo Knock on October 10, 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.*