# 共有めも vs Shared Diary

The clearest difference is in-app purchases: 共有めも at none against Shared Diary's 1. Shared Diary's advantage is update cadence (fortnightly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Shared Diary sells 1 in-app purchase, starting at $2.99 per month. 共有めも asks for nothing beyond the download.

共有めも ships an update every 3 months, Shared Diary fortnightly. The most recent releases landed on September 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 共有めも | Shared Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 38 MB | 41 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yoshiki Hishikawa](https://appshunter.io/developer/1642744918) | [Originate Aster, Inc.](https://appshunter.io/developer/1722580451) |

## What reviewers say

### 共有めも

[App page](https://appshunter.io/ios/app/id1642744916)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shared Diary

[App page](https://appshunter.io/ios/app/shared-diary/id6741321954)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proプラン(1か月間) | $2.99 | per month |


## Frequently asked questions

### Is 共有めも free?

共有めも is free to download, with no in-app purchases.

### Is Shared Diary free?

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

### Do 共有めも or Shared Diary have ads?

Both 共有めも and Shared Diary show ads.

### Which is updated more often, 共有めも or Shared Diary?

共有めも ships an update every 3 months, and Shared Diary fortnightly. Most recently, 共有めも was updated on September 10, 2026 and Shared Diary on September 24, 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.*