# シンプル「ABCDタスク管理」 vs Attention

The clearest difference is ads: Attention at none against シンプル「ABCDタスク管理」's shown. Attention also leads on update cadence (every 4 days vs every 3 months) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. シンプル「ABCDタスク管理」 sells 1 one-off in-app purchase and Attention sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

シンプル「ABCDタスク管理」 ships an update every 3 months, Attention every 4 days. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | シンプル「ABCDタスク管理」 | Attention |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 29 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [tomohiro nakano](https://appshunter.io/developer/1179284958) | [DAIKI MATSUI](https://appshunter.io/developer/1842952100) |

## What reviewers say

### シンプル「ABCDタスク管理」

[App page](https://appshunter.io/ios/app/abcd/id1516079594)

Prioritize tasks using the ABCD matrix based on urgency and importance. Organize tasks into customizable categories, view priorities at a glance, and secure your data with passcode locks. Offers theme customization and ad removal via in-app purchase.

**Highlights:** ABCD matrix for task prioritization, Task categorization and locking, Detailed task creation and editing, Customizable app themes and colors, Passcode protection for app and categories, Ad removal via in-app purchase

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $2.99 | one-time |


### Attention

[App page](https://appshunter.io/ios/app/attention-moon-study-timer/id6767784989)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-Day Free Trial | Free | one-time |
| Lifetime Unlock | $2.99 | one-time |


## Frequently asked questions

### Is シンプル「ABCDタスク管理」 free?

シンプル「ABCDタスク管理」 is free to download, with in-app purchases available.

### Is Attention free?

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

### Do シンプル「ABCDタスク管理」 or Attention have ads?

シンプル「ABCDタスク管理」 shows ads; Attention does not.

### Which is updated more often, シンプル「ABCDタスク管理」 or Attention?

シンプル「ABCDタスク管理」 ships an update every 3 months, and Attention every 4 days. Most recently, シンプル「ABCDタスク管理」 was updated on November 3, 2026 and Attention on November 9, 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.*