# 定規(Ruler) vs Pocket,Ruler

The clearest difference is ads: 定規(Ruler) at none against Pocket,Ruler's shown. Pocket,Ruler's advantage is update cadence (fortnightly vs every 6 months). On price, in-app purchases, device support 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.

定規(Ruler) ships an update every 6 months, Pocket,Ruler fortnightly. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 定規(Ruler) | Pocket,Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ruler/id1166028258/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 3 MB | 6 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mayumi Kato](https://appshunter.io/developer/705832872) | [旭 王](https://appshunter.io/developer/1536252900) |

## 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


### Pocket,Ruler

[App page](https://appshunter.io/ios/app/pocketruler/id6741355487)

**Features:** macOS Compatibility

**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 Pocket,Ruler free?

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

### Do 定規(Ruler) or Pocket,Ruler have ads?

Pocket,Ruler shows ads; 定規(Ruler) does not.

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

定規(Ruler) ships an update every 6 months, and Pocket,Ruler fortnightly. Most recently, 定規(Ruler) was updated on June 1, 2026 and Pocket,Ruler on September 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.*