# カテゴリ別メモ帳 vs NULL Memo

The clearest difference is ads: NULL Memo at none against カテゴリ別メモ帳's shown. カテゴリ別メモ帳's advantage is iOS requirement (13.0 vs 16.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. カテゴリ別メモ帳 sells 2 in-app purchases, starting at $0.49 per month and NULL Memo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | カテゴリ別メモ帳 | NULL Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Daily |
| Size | 42 MB | 60 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [yuuichi sasaki](https://appshunter.io/developer/1856209762) | [Aaron Chan](https://appshunter.io/developer/1888707957) |

## What reviewers say

### カテゴリ別メモ帳

[App page](https://appshunter.io/ios/app/id6755981806)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン（月額） | $0.49 | per month |
| プレミアムプラン（年間） | $4.99 | per year |


### NULL Memo

[App page](https://appshunter.io/ios/app/null-memo-ideas-notes-lists/id6761292505)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NULL Memo Pro | $2.99 | one-time |


## Frequently asked questions

### Is カテゴリ別メモ帳 free?

カテゴリ別メモ帳 is free to download, with in-app purchases available.

### Is NULL Memo free?

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

### Do カテゴリ別メモ帳 or NULL Memo have ads?

カテゴリ別メモ帳 shows ads; NULL Memo does not.

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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.*