# Ruler ++ — Measure lengths

> Digital ruler for measuring lengths in inches and centimeters. (iPhone/iPad app by Fapps World et Cie S.E.C.S..)

- Source: https://appshunter.io/ios/app/ruler-plus-plus/id381682088 (this page in markdown: same URL + `.md`)
- Developer: [Fapps World et Cie S.E.C.S.](https://appshunter.io/developer/881437066)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 3.50/5 from 934 App Store ratings · 825 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 17 MB
- Languages: Russian, Armenian, Persian, Vietnamese, American English, Arabic, Hungarian, Dutch, Greek, Danish and 23 more
- Released: 2010-07-20
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/ruler-plus-plus/id381682088/reviews.md

## What is Ruler ++?

Measure length in inches and cm.

## Key features

- Measure in inches
- Measure in centimeters
- Accurate length measurement
- Simple interface

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Advertisement-free upgrade | $0.99 | one-time |


## What do users think of Ruler ++?

Overall sentiment: negative

**Pros**

- 👍 Simple and quick to use
- 👍 Includes both metric and Imperial measures
- 🚀 Great for wanting to measure displayed length

**Cons**

- 🐛 Measurements are not accurate
- 🐛 Ruler not matching real-world measurements
- 🐛 Ruler not scaling properly on different devices
- 🔋 Ads make it impossible to use
- 🔋 Constant, intrusive ads
- 🔋 Ads with sound that can't be turned off

**Commonly reported bugs**

- Ruler markings are incorrect
- Ruler not displaying full length on screen
- Incompatible with newer iPhone models

**Most requested features**

- Add ability to calibrate ruler for different devices
- Improve accuracy of measurements
- Reduce or remove ads

## Recent user reviews (10 of 825)

All indexed reviews: https://appshunter.io/ios/app/ruler-plus-plus/id381682088/reviews.md

### 1/5 — Ad banner makes ruler inaccurate

*2026-07-18, version 1.8*

I wish I was joking here, but the banner ad at the top of the app squishes the ruler image and makes the ruler’s increments inaccurate! You need to pay to remove the ads to get an actually accurate ruler! Ridiculous!

### 1/5 — is deceiving

*2026-05-17, version 1.8*

Shows distance incorrectly.

### 1/5 — 普通にズレとる

*2026-04-24, version 1.8*

1cmは合ってるんだけど長くなるにつれてズレてくる

### 2/5 — Useless

*2026-03-30, version 1.8*

There is no way to adjust the rule to match your phone. I have a 17 pro max and it over measures on the scale

### 1/5 — Incorrect scale

*2026-03-04, version 1.8*

Incorrect scale on iPhone 12 mini

### 5/5 — Yep its a ruler

*2026-02-28, version 1.8*

🤘

### 1/5 — Non veritiero

*2026-02-23, version 1.8*

Assolutamente inutile

### 1/5 — Wrong measurement

*2026-01-18, version 1.8*

This app is not accurate. 1 inch is not an inch. It is about a half an inch off.

### 1/5 — Achtung Werte stimmen nicht

*2026-01-02, version 1.8*

iPhone 12 Pro Max und Zentimeter stimmen definitiv nicht

### 1/5 — Không chuẩn

*2025-12-28, version 1.8*

Kích thước trên app lớn hơn kích thước thực tế

## Frequently asked questions about Ruler ++

### What does Ruler ++ do?

Ruler ++ is a digital tool that allows you to measure lengths directly on your mobile device. It supports measurements in both inches and centimeters, providing a convenient way to get quick readings.

### What are the key features of Ruler ++?

The primary features include the ability to measure lengths in inches and centimeters. It offers accurate measurements with a simple and user-friendly interface, making it easy to use for various measuring needs.

### Is Ruler ++ free to use?

The app is free to download and use, with the option for in-app purchases. This allows users to access additional features or enhancements if desired.

### What is Ruler ++ used for?

This app is useful for a variety of everyday tasks where a quick measurement is needed. Whether you need to measure an object for fitting, check dimensions for a project, or simply want to know the size of something, this app provides a convenient solution.

## Version history (last 5 releases)

### 1.8 — 2018-10-16

Support of the new iPhones XS, XS Max and XR

### 1.7 — 2018-05-28

This update gives you the option to upgrade the app to an ad-free version.
We also fixed a few bugs.

### 1.6 — 2018-03-24

bug fix for iPhone X

### 1.5.2 — 2018-03-02

supporting iphone 8 and iphone X

### 1.5.1 — 2016-08-20

bugfix for iphone 6s and iphone 6s Plus

## Apps similar to Ruler ++

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Measuring Tape, Photo Ruler](https://appshunter.io/ios/app/measuring-tape-photo-ruler/id1020133524) | 4.2 (2,610) | Free | Productivity |
| [AR Ruler: Digital Tape Measure](https://appshunter.io/ios/app/ar-ruler-digital-tape-measure/id1326773975) | 4.6 (961) | Free | Productivity |
| [3D Snap: LiDAR Scanner & Ruler](https://appshunter.io/ios/app/3d-snap-lidar-scanner-and-ruler/id6477467417) | 3.9 (303) | Free | Productivity |
| [Tape Measure Camera AR Ruler](https://appshunter.io/ios/app/tape-measure-camera-ar-ruler/id1078675465) | 4.2 (775) | Free | Productivity |
| [100cm Ruler](https://appshunter.io/ios/app/100cm-ruler/id982815744) | 4.0 (1) | Free | Productivity |
| [Ruler - Accurate Ruler](https://appshunter.io/ios/app/ruler-accurate-ruler/id1084232739) | 2.6 (40) | Free | Productivity |

## More apps by Fapps World et Cie S.E.C.S.

- [Unit Conversion - Converter and Calculator](https://appshunter.io/ios/app/unit-conversion-converter-and-calculator/id336359986)
- [Arukone](https://appshunter.io/ios/app/arukone/id350576666)
- [Level Tool](https://appshunter.io/ios/app/level-tool/id353949542)
- [Handwritten email](https://appshunter.io/ios/app/handwritten-email/id359107042)
- [Bubble Shooter - Addictive!](https://appshunter.io/ios/app/bubble-shooter-addictive/id412192869)

All apps by Fapps World et Cie S.E.C.S.: https://appshunter.io/developer/881437066

## Related topics

[ruler app free inches](https://appshunter.io/ios/topics/ruler-app-free-inches) · [cm ruler](https://appshunter.io/ios/topics/cm-ruler) · [rule inches](https://appshunter.io/ios/topics/rule-inches) · [ruler inches](https://appshunter.io/ios/topics/ruler-inches) · [ruler app free metric](https://appshunter.io/ios/topics/ruler-app-free-metric) · [ruler inches free](https://appshunter.io/ios/topics/ruler-inches-free) · [iruler plus](https://appshunter.io/ios/topics/iruler-plus) · [inch ruler device size measure](https://appshunter.io/ios/topics/inch-ruler-device-size-measure) · [virtual ruler](https://appshunter.io/ios/topics/virtual-ruler) · [regla cm](https://appshunter.io/ios/topics/regla-cm) · [ruler millimeters](https://appshunter.io/ios/topics/ruler-millimeters) · [inch](https://appshunter.io/ios/topics/inch) · [length measure free](https://appshunter.io/ios/topics/length-measure-free) · [centimeter ruler](https://appshunter.io/ios/topics/centimeter-ruler) · [inch ruler](https://appshunter.io/ios/topics/inch-ruler) · [inch ruler free](https://appshunter.io/ios/topics/inch-ruler-free) · [metric ruler](https://appshunter.io/ios/topics/metric-ruler) · [ruler app free cm](https://appshunter.io/ios/topics/ruler-app-free-cm) · [flying ruler](https://appshunter.io/ios/topics/flying-ruler) · [ruler](https://appshunter.io/ios/topics/ruler)

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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 2026-08-26.*