# ロジックツリー vs HiMemo2

The clearest difference is review sentiment: HiMemo2 at 100% against ロジックツリー's 62%. HiMemo2 also leads on in-app purchases (none vs 1) and ads (none vs shown). ロジックツリー's advantage is update cadence (weekly vs monthly) and iOS requirement (10.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. ロジックツリー sells 1 one-off in-app purchase. HiMemo2 asks for nothing beyond the download.

ロジックツリー ships an update weekly, HiMemo2 monthly. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ロジックツリー | HiMemo2 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 61.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Monthly |
| Monetization | — | Free |
| Size | 51 MB | 2 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 9+ | 4+ |
| Developer | [Shiro Miyahara](https://appshunter.io/developer/1538525165) | [Hiroyuki Kawai](https://appshunter.io/developer/1286509355) |

## What reviewers say

### ロジックツリー

[App page](https://appshunter.io/ios/app/id1538525163)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $0.99 | one-time |


### HiMemo2

[App page](https://appshunter.io/ios/app/himemo2/id1614965391)

Organize information with a simple, hierarchical structure. Easily add, edit, and view data in a tree format, and export it to other apps. Syncs across Apple devices and is accessible on Apple Watch.

**Highlights:** Hierarchical data entry and management, Cross-device sync (iPhone, iPad, Mac), Apple Watch browsing, Enhanced search functionality, Simple and intuitive UI, Plain text and HTML export

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ロジックツリー free?

ロジックツリー is free to download, with in-app purchases available.

### Is HiMemo2 free?

HiMemo2 is free to download, with no in-app purchases.

### Do ロジックツリー or HiMemo2 have ads?

ロジックツリー shows ads; HiMemo2 does not.

### Which is updated more often, ロジックツリー or HiMemo2?

ロジックツリー ships an update weekly, and HiMemo2 monthly. Most recently, ロジックツリー was updated on October 8, 2026 and HiMemo2 on October 27, 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.*