# シンプル「ABCDタスク管理」 vs Understudy

The clearest difference is ads: Understudy at none against シンプル「ABCDタスク管理」's shown. Understudy also leads on update cadence (monthly vs every 3 months) and iOS requirement (14.0 vs 18.6). On price, in-app purchases and device support 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 Understudy sells 5 in-app purchases, starting at $4.99 per month. 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, Understudy monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | シンプル「ABCDタスク管理」 | Understudy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 42 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [tomohiro nakano](https://appshunter.io/developer/1179284958) | [Shingo Otsuhata](https://appshunter.io/developer/1871224706) |

## 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 |


### Understudy

[App page](https://appshunter.io/ios/app/understudy-learn-your-lines/id6758158317)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Understudy Pro (Monthly) | $4.99 | per month |
| Understudy Pro (Yearly) | $29.99 | per year |
| Buy me a coffee | $0.99 | one-time |
| Add a donut | $1.99 | one-time |
| Add a sandwich | $3.99 | 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 Understudy free?

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

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

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

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

シンプル「ABCDタスク管理」 ships an update every 3 months, and Understudy monthly. Most recently, シンプル「ABCDタスク管理」 was updated on October 24, 2026 and Understudy on October 25, 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.*