# 家族ダイアリー 〜交換日記アプリ〜 vs weknow

The clearest difference is update cadence: weknow at daily against 家族ダイアリー 〜交換日記アプリ〜's every 4 days. 家族ダイアリー 〜交換日記アプリ〜's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. 家族ダイアリー 〜交換日記アプリ〜 sells 3 in-app purchases, starting at $1.99 per month and weknow sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

家族ダイアリー 〜交換日記アプリ〜 ships an update every 4 days, weknow daily. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 家族ダイアリー 〜交換日記アプリ〜 | weknow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/id1528947553/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 57.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 18 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hidemitsu sekiyama](https://appshunter.io/developer/1509065314) | [harukazu niikura](https://appshunter.io/developer/1879982114) |

## What reviewers say

### 家族ダイアリー 〜交換日記アプリ〜

[App page](https://appshunter.io/ios/app/id1528947553)

This app facilitates private exchange diaries for families and friends. Share your thoughts and memories securely with loved ones.

**Highlights:** Private exchange diaries, Share with family and friends, Secure memory sharing, Digital journaling

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 家族ダイアリーProモード | $1.99 | per month |
| 家族ダイアリーProモード（年額） | $19.99 | per year |
| PROモード | $1.99 | one-time |

**What reviewers like**

- 👍 Simple and cute design
- 👍 Easy to use
- 👍 Good for communication with family/friends
- 👍 Useful for recording memories
- 👍 Cute cat illustrations

**What reviewers complain about**

- 🚯 Notifications not arriving
- 🚯 App not opening/loading
- 🚯 Date errors
- 🚯 Cannot view family diaries
- 🚯 Unknown user appearing

**Reported bugs**

- Notifications not arriving
- App not opening/loading
- Incorrect year displayed (e.g., 0007)
- Unable to view family diaries
- Unknown user 'null' appearing in family list

**Requested features**

- Implement password protection
- Allow immediate photo uploads
- Adjustable font size
- Backup/PC save function
- Add comment deletion/editing


### weknow

[App page](https://appshunter.io/ios/app/weknow/id6760300771)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム（月額） | $1.99 | per month |
| プレミアム（年額） | $19.99 | per year |


## Frequently asked questions

### Is 家族ダイアリー 〜交換日記アプリ〜 free?

家族ダイアリー 〜交換日記アプリ〜 is free to download, with in-app purchases available.

### Is weknow free?

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

### Do 家族ダイアリー 〜交換日記アプリ〜 or weknow have ads?

Both 家族ダイアリー 〜交換日記アプリ〜 and weknow show ads.

### Which is updated more often, 家族ダイアリー 〜交換日記アプリ〜 or weknow?

家族ダイアリー 〜交換日記アプリ〜 ships an update every 4 days, and weknow daily. Most recently, 家族ダイアリー 〜交換日記アプリ〜 was updated on October 17, 2026 and weknow on October 12, 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.*