# 曲尺 vs Due Pal

The clearest difference is ads: Due Pal at none against 曲尺's shown. Due Pal also leads on update cadence (every 2 weeks vs every 6 weeks) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

曲尺 ships an update every 6 weeks, Due Pal every 2 weeks. The most recent releases landed on October 5, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 曲尺 | Due Pal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/due-pal-adhd-visual-timer/id6756181712/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 90.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | — | Paid |
| Size | 5 MB | 18 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Masayuki Sato](https://appshunter.io/developer/1741867656) | [帅 陈](https://appshunter.io/developer/1655624601) |

## What reviewers say

### 曲尺

[App page](https://appshunter.io/ios/app/id6498873960)

**Features:** macOS Compatibility

**In-app purchases:** none


### Due Pal

[App page](https://appshunter.io/ios/app/due-pal-adhd-visual-timer/id6756181712)

This app provides a persistent visual countdown to your next scheduled event, designed to combat time blindness for individuals with ADHD. It offers customizable visual styles and smart reminders to help manage transitions between tasks and appointments.

**Highlights:** Persistent visual countdown, Always-visible on Lock Screen/Dynamic Island, Two visual styles: Flip Clock & Digital, Smart transition reminders, Flexible daily scheduling, High-contrast readable design

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

**In-app purchases:** none


## Frequently asked questions

### Is 曲尺 free?

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

### Is Due Pal free?

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

### Do 曲尺 or Due Pal have ads?

曲尺 shows ads; Due Pal does not.

### Which is updated more often, 曲尺 or Due Pal?

曲尺 ships an update every 6 weeks, and Due Pal every 2 weeks. Most recently, 曲尺 was updated on October 5, 2026 and Due Pal on October 21, 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.*