# ロック付チャットメモ帳 vs Memo

The clearest difference is in-app purchases: ロック付チャットメモ帳 at none against Memo's 1. ロック付チャットメモ帳 also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Memo sells 1 one-off in-app purchase. ロック付チャットメモ帳 asks for nothing beyond the download.

ロック付チャットメモ帳 ships an update monthly, Memo every 2 weeks. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | ロック付チャットメモ帳 | Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 10 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [TOMOYUKI NISHIO](https://appshunter.io/developer/6797396165) | [Takahiro Kimura](https://appshunter.io/developer/6775796488) |

## What reviewers say

### ロック付チャットメモ帳

[App page](https://appshunter.io/ios/app/id6797396163)

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

**In-app purchases:** none


### Memo

[App page](https://appshunter.io/ios/app/memo-quick-notes/id6813859908)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is ロック付チャットメモ帳 free?

ロック付チャットメモ帳 is free to download, with no in-app purchases.

### Is Memo free?

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

### Do ロック付チャットメモ帳 or Memo have ads?

Memo shows ads; ロック付チャットメモ帳 does not.

### Which is updated more often, ロック付チャットメモ帳 or Memo?

ロック付チャットメモ帳 ships an update monthly, and Memo every 2 weeks. Most recently, ロック付チャットメモ帳 was updated on October 31, 2026 and Memo on October 29, 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.*