# Ruler+ Utility

> Smartphone app that functions as a digital ruler for measuring lengths. (iPhone/iPad app by Kyungjin Lee.)

- Source: https://appshunter.io/ios/app/ruler-plus-utility/id1017729457 (this page in markdown: same URL + `.md`)
- Developer: [Kyungjin Lee](https://appshunter.io/developer/572393811)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 3.00/5 from 2 App Store ratings · 30 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 24 MB
- Languages: American English, Afrikaans, Albanian, Amharic, Arabic, Armenian, Azerbaijani, Basque, Belarusian, Bangla and 61 more
- Released: 2015-08-08
- Data updated: 2026-09-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/ruler-plus-utility/id1017729457/reviews.md

## What is Ruler+ Utility?

This app transforms your smartphone into a handy ruler.  
Whenever you’re curious about the length of something, you can measure it instantly with just your smartphone!

From a pencil on your desk to the thickness of a book, 'Ruler' is perfect for quickly checking lengths.  
Without any complex explanations or difficult features, just open the app and measure according to the scale.  
Its intuitive interface allows anyone to measure quickly and accurately.

Measurement methods:  
1) Fixed Ruler: Place the object you want to measure on your smartphone, touch the screen with your finger, and move it to the end of the object to measure its length.  
2) Scroll Ruler: Use this method to measure objects longer than your smartphone. Place your smartphone next to the object, hold it with your thumb and middle finger, touch the screen with your index finger, and move the phone gradually to measure the length.

Main Features:  
- Easily save the measurements you take  
- Measure in both centimeters (cm) and inches (inch)  
- Fine-tune the scale for more precise measurements  
- Choose between fixed and scroll modes depending on your needs

Never worry about not having a ruler again.  
With 'Ruler', you can measure anything conveniently at any time.  
Experience smart measurement now!

## Key features

- Smartphone ruler
- Fixed and scroll measurement modes
- Save measurements
- Centimeter and inch support
- Fine-tune scale
- Intuitive interface

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Recent user reviews (10 of 30)

All indexed reviews: https://appshunter.io/ios/app/ruler-plus-utility/id1017729457/reviews.md

### 1/5 — Don’t bother

*2021-11-01, version 1.48*

This apps rules is way off since the large screen phones, why is it still available should be booted off the appstore

### 1/5 — Wrong size on iPad Pro

*2021-09-18, version 1.48*

The measurement is the wrong size

### 5/5 — 딱 찾던 어플이에요 ㅎㅎ

*2021-06-19*

아이폰6기준(6s아님) -94가 맞네요? ㅎㅎ 센치 잴때까 많은데 넘 유용해요 ㅎㅎ

### 5/5 — Very Helpful App

*2020-09-06*

I enjoy using this app a lot. Sometimes I need to know what the length is in a visual way. I collect watches and pocket watches and don’t carry a ruler around. This way I can see something online for sale and use this app to visualize the advertised size. Easy to use and just what I needed. Five stars!

### 1/5 — 별로네요

*2020-07-21*

아이폰은 모델마다 치수가정해져있는데
앱에서 아이폰정보 가져다가 자동으로
스케일조절을 할수있을거같은데
그걸 직접 사용자가 조절하게 만들어서
엄청 불편하네요.... 이걸 쓰라고만든건지..

### 1/5 — 사이즈가 다르네요

*2020-07-15*

조절해도 안맞습니다(-99해도 안됨, 아이폰7+)
4년정도 나홀로 센티대신 인치를 쓰고 살아왔네요
덕분에 영어 실력이 향상된 것은 아닐까 최대한 긍정적으로 생각하고 있습니다. 안그러면 제 삶이 너무 비참해지니까요

### 5/5 — 아이폰 11 Pro

*2019-12-27*

아이폰 11 Pro 기준으로 스케일 -90잡고 신용카드 올려보니 딱 맞습니다

### 4/5 — 아이폰xs기준...

*2019-11-06*

기종마다 스케일 조정치를 알려주면 좋겟어요 ㅜ
신용카드 세로 5.4 기준 아이폰xs -87 하니까 대강맞네용~

### 1/5 — Very inaccurate

*2019-07-02, version 1.48*

Totally off scale!

### 1/5 — Wrong size

*2019-06-28, version 1.48*

On my iPhone XS Max the ruler is totally the wrong size.

## Frequently asked questions about Ruler+ Utility

### How does Ruler+ Utility work?

Ruler+ Utility uses your smartphone's screen to measure objects. You can use the 'Fixed Ruler' for smaller items by placing them on the screen, or the 'Scroll Ruler' for longer objects by moving your phone along the item.

### What measurement units does Ruler+ Utility support?

Ruler+ Utility supports measurements in both centimeters (cm) and inches (inch), offering flexibility for various needs.

### Can I save my measurements with Ruler+ Utility?

Yes, Ruler+ Utility allows you to easily save the measurements you take, so you can refer back to them later.

### Does Ruler+ Utility have ads?

Yes, Ruler+ Utility contains advertisements. This is common for free utility apps that offer in-app purchases.

### What devices is Ruler+ Utility compatible with?

Ruler+ Utility is designed for Apple devices, including iPhone, iPad, and iPod.

### How accurate is Ruler+ Utility?

The app offers fine-tuning of the scale for more precise measurements. However, accuracy can depend on screen calibration and user technique.

### What is the age rating for Ruler+ Utility?

Ruler+ Utility has an age rating of 4+, making it suitable for a wide range of users.

### When was Ruler+ Utility last updated?

Ruler+ Utility was last updated on October 16, 2024, with version 1.600, indicating ongoing support and potential improvements.

## Version history (last 4 releases)

### 1.600 — 2024-10-16

- Fix minor issues

### 1.500 — 2024-03-20

- Fix minor issues

### 1.48 — 2018-11-15

- Edit layout

### 1.0 — 2015-08-08

No release notes.

## Apps similar to Ruler+ Utility

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Flying Ruler: 3D Tape Measure](https://appshunter.io/ios/app/flying-ruler-3d-tape-measure/id667579844) | 4.1 (187) | $1.99 | Utilities |
| [Millimeter Pro - screen ruler](https://appshunter.io/ios/app/millimeter-pro-screen-ruler/id631810777) | 4.4 (108) | $3.99 | Utilities |
| [AR Ruler: Measuring tape ruler](https://appshunter.io/ios/app/ar-ruler-measuring-tape-ruler/id1288961677) | 4.1 (848) | Free | Utilities |
| [AR Ruler Cam: Tape Measure](https://appshunter.io/ios/app/ar-ruler-cam-tape-measure/id848139616) | 3.8 (8) | Free | Utilities |
| [Ruler / Measuring Tape](https://appshunter.io/ios/app/ruler-measuring-tape/id1262452961) | 4.4 (219) | Free | Utilities |
| [Ruler AR - Measuring Tape Cam](https://appshunter.io/ios/app/ruler-ar-measuring-tape-cam/id1279285953) | 4.3 (3,493) | Free | Utilities |

## More apps by Kyungjin Lee

- [Lucky Pick - Ghost Leg](https://appshunter.io/ios/app/lucky-pick-ghost-leg/id590186910)
- [Lucky Draw - Draw Straws](https://appshunter.io/ios/app/lucky-draw-draw-straws/id627332548)
- [Lucky Roulette - Game](https://appshunter.io/ios/app/lucky-roulette-game/id628350003)
- [서울문화공연](https://appshunter.io/ios/app/id675505201)
- [서울취미교육](https://appshunter.io/ios/app/id739002970)
- [그린라이트](https://appshunter.io/ios/app/id909848530)

All apps by Kyungjin Lee: https://appshunter.io/developer/572393811

## Related topics

[iruler plus](https://appshunter.io/ios/topics/iruler-plus)

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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 2026-09-03.*