# 定規(Ruler) — user reviews

> 5 indexed App Store user reviews of 定規(Ruler) by Mayumi Kato, rated 5.00/5 from 2 ratings.

- Source: https://appshunter.io/ios/app/ruler/id1166028258/reviews
- App overview in markdown: https://appshunter.io/ios/app/ruler/id1166028258.md
- Rating breakdown: 5★ 2 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (5 lowest-rated)

### 3/5 — 広告が邪魔で使いづらい

*2019-02-17, version 1.6*

デジタル定規としては精度も申し分なくて好印象なのですが、広告とバージョンのポップが邪魔で、実際にパッと測定できる範囲は30mm程度しかありません。

有料でも良いので画面全体の邪魔なものを排除したアプリを配信してほしいです。期待してます。

### 4/5 — Just needs an English language setting

*2024-11-12*

Does what you need. But if you only understand English then you might have a hard time changing Colors. Please add an English language setting and I can give it 5 stars.

### 5/5 — Simple and Accurate

*2024-12-26*

Super simple, easy and accurate. I measured it with an actual ruler and it was right on. (Using on an iPhone 14.) I wanted a simple on screen ruler to visualize and measure the size of small items, mostly in cm and mm sizes and this one is perfect! No unnecessary other features, just two little rulers. 
Not sure if the developer is supporting this app anymore or reading this review, but if so: I would love to see a feature where you can make the 0 marker stand out and dividing the inches into quarters (like an imperial ruler) would be helpful.

### 5/5 — Excellent application and suggestion

*2024-08-29*

This ruler is excellent and very nice and simple to use. Very helpful! Thank you very much!

I suggest a function to extend the length of the ruler to more than 12 cm, e.g. 100 cm, even the monitor is short, the user could tap on the screen and move the phone in order to measure longer length, that will be pretty useful given that iPhone monitor only have 1x cm.

### 5/5 — 全く広告が出ない!なぜ⁉︎

*2020-03-04, version 1.6*

絶対的にこのAppleを強制的に削除してやるうぅぅぅぅぅぅーーー［私のgold

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*