# 定規(Ruler) vs Quick Measure

The clearest difference is update cadence: Quick Measure at every 2 weeks against 定規(Ruler)'s every 6 months. Quick Measure also leads on review sentiment (100% vs 80%) and iOS requirement (13.0 vs 15.6). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for 定規(Ruler) against 5.0 for Quick Measure. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews are what separate them: 80% of 定規(Ruler)'s written reviews are positive against 100% of Quick Measure's.

定規(Ruler) ships an update every 6 months, Quick Measure every 2 weeks. The most recent releases landed on June 1, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | 定規(Ruler) | Quick Measure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/ruler/id1166028258/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/quick-measure-precise-ruler/id6738601525/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 3 MB | 7 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mayumi Kato](https://appshunter.io/developer/705832872) | [大靖 刘](https://appshunter.io/developer/1233662093) |

## What reviewers say

### 定規(Ruler)

[App page](https://appshunter.io/ios/app/ruler/id1166028258)

A straightforward measuring tool for iPhones, offering accurate measurements in both millimeters and inches. It's designed for ease of use and provides a cool, functional experience for everyday measuring needs.

**Highlights:** Accurate measurements, Millimeter display, Inch display, Supports all iPhone sizes, Simple interface

**In-app purchases:** none


### Quick Measure

[App page](https://appshunter.io/ios/app/quick-measure-precise-ruler/id6738601525)

This utility app provides a digital and augmented reality ruler for precise measurements. It includes features like unit conversion, a built-in level, and the ability to record and store measurement data.

**Highlights:** Digital ruler for precise length measurements, AR ruler for measuring distances in real-world environments, Measurement recording and storage, Built-in level function, Unit conversion between metric and imperial systems

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

**In-app purchases:** none


## Frequently asked questions

### Is 定規(Ruler) free?

定規(Ruler) is free to download, with no in-app purchases.

### Is Quick Measure free?

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

### Which has better reviews, 定規(Ruler) or Quick Measure?

定規(Ruler) and Quick Measure are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do 定規(Ruler) or Quick Measure have ads?

Neither 定規(Ruler) nor Quick Measure shows ads.

### Which is updated more often, 定規(Ruler) or Quick Measure?

定規(Ruler) ships an update every 6 months, and Quick Measure every 2 weeks. Most recently, 定規(Ruler) was updated on June 1, 2026 and Quick Measure on September 1, 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.*