# KotonohaDiary vs Diary with Lock

The clearest difference is in-app purchases: KotonohaDiary at none against Diary with Lock's 1. Diary with Lock's advantage is update cadence (every 3 months vs every 6 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Diary with Lock sells 1 in-app purchase, starting at $9.99 per year. KotonohaDiary asks for nothing beyond the download.

KotonohaDiary ships an update every 6 months, Diary with Lock every 3 months. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | KotonohaDiary | Diary with Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (20 ratings)](https://appshunter.io/ios/app/diary-with-lock-idiary/id1625609721/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | — | Freemium |
| Size | 2 MB | 58 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stargazer Information Inc.](https://appshunter.io/developer/1827860520) | [Heyou Co., Ltd.](https://appshunter.io/developer/1480358223) |

## What reviewers say

### KotonohaDiary

[App page](https://appshunter.io/ios/app/kotonohadiary/id1273593816)

**Features:** macOS Compatibility

**In-app purchases:** none


### Diary with Lock

[App page](https://appshunter.io/ios/app/diary-with-lock-idiary/id1625609721)

Capture and cherish life's moments in a secure, beautifully designed digital journal. Add text, photos, and videos, track your mood and weather, and protect your entries with a passcode. Back up your memories to iCloud and export them as PDFs.

**Highlights:** Photo and text diary entries, Lock screen passcode protection, iCloud backup, Mood and weather tracking, Font customization, Intruder snapshots, PDF export

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iDiary Pro | $9.99 | per year |


## Frequently asked questions

### Is KotonohaDiary free?

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

### Is Diary with Lock free?

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

### Do KotonohaDiary or Diary with Lock have ads?

Neither KotonohaDiary nor Diary with Lock shows ads.

### Which is updated more often, KotonohaDiary or Diary with Lock?

KotonohaDiary ships an update every 6 months, and Diary with Lock every 3 months. Most recently, KotonohaDiary was updated on October 3, 2026 and Diary with Lock on October 11, 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.*