# KokuDoku：読書メモ、管理、活用 vs Work Notes

The clearest difference is in-app purchases: KokuDoku：読書メモ、管理、活用 at none against Work Notes's 1. KokuDoku：読書メモ、管理、活用 also leads on ads (none vs shown) and update cadence (weekly vs fortnightly). Work Notes's advantage is iOS requirement (18.6 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Work Notes sells 1 one-off in-app purchase. KokuDoku：読書メモ、管理、活用 asks for nothing beyond the download.

KokuDoku：読書メモ、管理、活用 ships an update weekly, Work Notes fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | KokuDoku：読書メモ、管理、活用 | Work Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Size | 28 MB | 33 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chiaki Kobayashi](https://appshunter.io/developer/1865034949) | [RYOTA SUZUKI](https://appshunter.io/developer/1726784326) |

## What reviewers say

### KokuDoku：読書メモ、管理、活用

[App page](https://appshunter.io/ios/app/kokudoku/id6757169073)

**In-app purchases:** none


### Work Notes

[App page](https://appshunter.io/ios/app/work-notes-daily-insight-log/id6759020843)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $12.99 | one-time |


## Frequently asked questions

### Is KokuDoku：読書メモ、管理、活用 free?

KokuDoku：読書メモ、管理、活用 is free to download, with no in-app purchases.

### Is Work Notes free?

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

### Do KokuDoku：読書メモ、管理、活用 or Work Notes have ads?

Work Notes shows ads; KokuDoku：読書メモ、管理、活用 does not.

### Which is updated more often, KokuDoku：読書メモ、管理、活用 or Work Notes?

KokuDoku：読書メモ、管理、活用 ships an update weekly, and Work Notes fortnightly. Most recently, KokuDoku：読書メモ、管理、活用 was updated on October 31, 2026 and Work Notes 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.*