---
title: "定規(Ruler) - Reviews, Revenue and Downloads in Japan | Apple App Store"
description: "シンプルな定規、mmとinch表示で全てのサイズのiPhoneで正確に測れます。カッコいいでしょ You can measure correctly in iPhone with the size of everything by simple ruler, mm and inch indication. It would be cool"
---

# 定規(Ruler) — Japan

![定規(Ruler) App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/6b/1f/cf/6b1fcf49-83dc-70da-af7a-26d696740131/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/434x0w.png)

**Developer:** [Mayumi Kato](https://apptail.io/developer/mayumi-kato-LYvb) (Japan)
**Category:** Utilities
**Rating:** 3.0/5 (3 ratings)
**Price:** Free
**Bundle ID:** jp.goemon.Ruler
**Store:** Apple App Store
**Country:** Japan
**Version:** 1.8 (released 2025-02-03)
**Original Release:** 2016-11-01
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/jp/app/app/id1166028258)
**AppTail Page:** [https://apptail.io/app/ruler-umrk/japan](https://apptail.io/app/ruler-umrk/japan)

## 定規(Ruler) Description
シンプルな定規、mmとinch表示で全てのサイズのiPhoneで正確に測れます。カッコいいでしょ
You can measure correctly in iPhone with the size of everything by simple ruler, mm and inch indication. It would be cool

## 定規(Ruler) Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/2f/7e/9d/2f7e9d7b-51c8-1a82-037f-82102b828e8b/88f75d8b-cece-49af-9d46-d82b9eaa2970_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-08-21_at_06.55.36.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/52/aa/c8/52aac816-3cb0-6870-b7ca-01d5c7f208ed/b2f4565d-ed50-4d40-8444-80e820970637_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-08-21_at_06.56.34.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/17/0f/bb/170fbbca-e450-a4bf-ef79-2616568fe602/45204c68-7a00-4cf3-be2c-91985f02d11c_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-08-21_at_06.55.41.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/ac/38/51/ac385110-f927-a333-8592-fc28a37ffb74/b36f5e14-b5d9-4c31-8c9d-86dc56896b90_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2021-08-21_at_06.56.05.png/1242x2688.png)

## 定規(Ruler) Rating Breakdown in Japan
- 5 stars: 1 (33%)
- 4 stars: 0 (0%)
- 3 stars: 1 (33%)
- 2 stars: 0 (0%)
- 1 stars: 1 (33%)






## 定規(Ruler) Available In
- [Japan](https://apptail.io/app/ruler-umrk/japan)
- [United Kingdom](https://apptail.io/app/ruler-umrk/united-kingdom)
- [Taiwan](https://apptail.io/app/ruler-umrk/taiwan)
- [United States](https://apptail.io/app/ruler-umrk/united-states)
- [Canada](https://apptail.io/app/ruler-umrk/canada)
- [Hong Kong SAR China](https://apptail.io/app/ruler-umrk/hong-kong)
- [China](https://apptail.io/app/ruler-umrk/china)
- [Cyprus](https://apptail.io/app/ruler-umrk/cyprus)
- [Germany](https://apptail.io/app/ruler-umrk/germany)
- [Denmark](https://apptail.io/app/ruler-umrk/denmark)
- [Ecuador](https://apptail.io/app/ruler-umrk/ecuador)
- [Estonia](https://apptail.io/app/ruler-umrk/estonia)
- [Spain](https://apptail.io/app/ruler-umrk/spain)
- [Finland](https://apptail.io/app/ruler-umrk/finland)
- [France](https://apptail.io/app/ruler-umrk/france)
- [Hungary](https://apptail.io/app/ruler-umrk/hungary)
- [Ireland](https://apptail.io/app/ruler-umrk/ireland)
- [Israel](https://apptail.io/app/ruler-umrk/israel)
- [India](https://apptail.io/app/ruler-umrk/india)
- [Iceland](https://apptail.io/app/ruler-umrk/iceland)
- [Italy](https://apptail.io/app/ruler-umrk/italy)
- [South Korea](https://apptail.io/app/ruler-umrk/south-korea)
- [Kazakhstan](https://apptail.io/app/ruler-umrk/kazakhstan)
- [Sri Lanka](https://apptail.io/app/ruler-umrk/sri-lanka)
- [Lithuania](https://apptail.io/app/ruler-umrk/lithuania)
- [Luxembourg](https://apptail.io/app/ruler-umrk/luxembourg)
- [Latvia](https://apptail.io/app/ruler-umrk/latvia)
- [Madagascar](https://apptail.io/app/ruler-umrk/madagascar)
- [Malta](https://apptail.io/app/ruler-umrk/malta)
- [Mexico](https://apptail.io/app/ruler-umrk/mexico)
- [Malaysia](https://apptail.io/app/ruler-umrk/malaysia)
- [Nigeria](https://apptail.io/app/ruler-umrk/nigeria)
- [Netherlands](https://apptail.io/app/ruler-umrk/netherlands)
- [Norway](https://apptail.io/app/ruler-umrk/norway)
- [New Zealand](https://apptail.io/app/ruler-umrk/new-zealand)
- [Peru](https://apptail.io/app/ruler-umrk/peru)
- [Philippines](https://apptail.io/app/ruler-umrk/philippines)
- [Pakistan](https://apptail.io/app/ruler-umrk/pakistan)
- [Saudi Arabia](https://apptail.io/app/ruler-umrk/saudi-arabia)
- [Singapore](https://apptail.io/app/ruler-umrk/singapore)
- [Slovenia](https://apptail.io/app/ruler-umrk/slovenia)
- [Slovakia](https://apptail.io/app/ruler-umrk/slovakia)
- [Thailand](https://apptail.io/app/ruler-umrk/thailand)
- [Türkiye](https://apptail.io/app/ruler-umrk/turkey)
- [Uzbekistan](https://apptail.io/app/ruler-umrk/uzbekistan)
- [Armenia](https://apptail.io/app/ruler-umrk/armenia)
- [South Africa](https://apptail.io/app/ruler-umrk/south-africa)
- [Australia](https://apptail.io/app/ruler-umrk/australia)
- [Azerbaijan](https://apptail.io/app/ruler-umrk/azerbaijan)
- [Belgium](https://apptail.io/app/ruler-umrk/belgium)
- [Bulgaria](https://apptail.io/app/ruler-umrk/bulgaria)
- [Bahrain](https://apptail.io/app/ruler-umrk/bahrain)

---

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