# カレンダーメモ vs WebShelf

The clearest difference is device support: カレンダーメモ at 3 against WebShelf's 1. カレンダーメモ also leads on iOS requirement (15.1 vs 17.4). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. カレンダーメモ sells 1 in-app purchase, starting at $0.99 per month and WebShelf sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

カレンダーメモ ships an update weekly, WebShelf every 4 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | カレンダーメモ | WebShelf |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Size | 46 MB | 4 MB |
| Requires iOS | **15.1** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Raimu Abe](https://appshunter.io/developer/1880550674) | [SHIGEMITSU RYOMA](https://appshunter.io/developer/6775736847) |

## What reviewers say

### カレンダーメモ

[App page](https://appshunter.io/ios/app/id6759765933)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $0.99 | per month |


### WebShelf

[App page](https://appshunter.io/ios/app/webshelf/id6775736845)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full (Unlimited Saves) | $2.99 | one-time |


## Frequently asked questions

### Is カレンダーメモ free?

カレンダーメモ is free to download, with in-app purchases available.

### Is WebShelf free?

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

### Do カレンダーメモ or WebShelf have ads?

Neither カレンダーメモ nor WebShelf shows ads.

### Which is updated more often, カレンダーメモ or WebShelf?

カレンダーメモ ships an update weekly, and WebShelf every 4 days. Most recently, カレンダーメモ was updated on November 5, 2026 and WebShelf on November 5, 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.*