# Ruler with Caliper, Protractor — Measure Angle, Level & Convert

> Digital ruler and tape measure app for accurate on-the-go measurements. (iPhone/iPad app by Bhavinkumar Satashiya.)

- Source: https://appshunter.io/ios/app/ruler-with-caliper-protractor/id1368462815 (this page in markdown: same URL + `.md`)
- Developer: [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921)
- Category: Utilities
- Price: Free with in-app purchases (on sale, was $7.99)
- Age rating: 4+
- Requires: iOS 16.0 · 6 MB
- Languages: American English
- Released: 2018-04-07
- Data updated: 2026-08-13
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/ruler-with-caliper-protractor/id1368462815/reviews.md

## What is Ruler with Caliper, Protractor?

# Ruler – Digital Ruler & Tape Measure

Turn your smartphone into a precise measuring tool with **Ruler – Digital Ruler & Tape Measure**. Whether you're measuring small objects, checking angles, finding distances, or ensuring a perfectly level surface, this all-in-one toolkit provides everything you need in one easy-to-use app.

Perfect for students, engineers, architects, designers, DIY enthusiasts, woodworkers, and everyday use.

## Features

**Digital Ruler**
Measure the length and width of objects directly on your phone screen with accurate calibration.

**Tape Measure**
Quickly measure objects using your device with an easy-to-read digital measuring interface.

**Caliper**
Measure thickness, internal diameter, external diameter, and depth with precision. Great for mechanical parts, jewellery, hardware, and engineering tasks.

**Pinpoint Measurement**
Measure the exact distance between two fingers on your screen for quick and convenient measurements.

**Spirit Level**
Check whether surfaces are perfectly horizontal or vertical using your phone's built-in sensors. Ideal for hanging pictures, installing shelves, and DIY projects.

**Protractor**
Measure and draw angles in degrees with an accurate digital protractor for school, construction, and design work.

**Calibration Tool**
Calibrate the ruler to your device for reliable and precise measurements across different screen sizes.

## Why Choose Ruler?

* Fast and easy to use
* Accurate digital measurements
* Multiple measuring tools in one app
* Clean and intuitive interface
* Suitable for home, school, office, workshop, and construction
* Works on most iOS devices

Whether you're measuring furniture, checking angles, calculating dimensions, or levelling surfaces, **Ruler – Digital Ruler & Tape Measure** gives you the essential tools you need wherever you go.

Download now and carry a complete measuring toolkit in your pocket.

Privacy Policy : https://forms.gle/dnBUgnpqw4AREio97
Terms of Use : https://forms.gle/2uy2JqJa2JjkTZpo8

## Key features

- Accurate measurements via camera
- Measure small objects to large distances
- User-friendly interface
- Multiple measurement units (inches, cm)
- Virtual ruler on screen
- Save and share measurements
- Offline accessibility

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Yearly | $39.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $49.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/ruler-with-caliper-protractor/id1368462815/reviews.md

### 1/5 — Same problem as others noted

*2024-04-13*

Scale is inaccurate and there’s no manual way to adjust it in the app. Until this is fixed this app should be avoided

### 1/5 — This would be great if…

*2024-03-29*

This would be great if the scale was accurate. Instead the scale shows the phone to be about 9” long. That’s totally wrong. So it ends up being useless to measure since the scale isn’t accurate. 

If you could manually select the scale fo your phone size that would fix the issue

## Frequently asked questions about Ruler with Caliper, Protractor

### What is Ruler - Length, Height Measure?

Ruler - Length, Height Measure is a utility app that uses your device's camera to provide accurate digital measurements of objects and distances. It functions as a virtual ruler and tape measure.

### How accurate are the measurements in Ruler - Length, Height Measure?

The app claims to provide precise measurements with advanced algorithms, comparable to traditional measuring tools. It adapts to various scenarios for accurate results.

### Can I use Ruler - Length, Height Measure offline?

Yes, Ruler - Length, Height Measure works offline, allowing you to measure anytime and anywhere without needing an internet connection.

### What measurement units does Ruler - Length, Height Measure support?

Ruler - Length, Height Measure supports multiple units of measurement, including inches and centimeters, ensuring compatibility with your preferred standards.

### Does Ruler - Length, Height Measure have ads?

No, Ruler - Length, Height Measure offers an ad-free experience, allowing for an uninterrupted measuring process.

### What devices is Ruler - Length, Height Measure available on?

Ruler - Length, Height Measure is available on iPhone, iPad, and iPod, and is suitable for users aged 4 and up.

### What are the subscription options for Ruler - Length, Height Measure?

Ruler - Length, Height Measure offers subscription plans including a weekly option for $3.99/P7D and a yearly option for $39.99/P1Y.

### How often is Ruler - Length, Height Measure updated?

The app was last updated on January 21, 2026, with version 1.3. This indicates a recent update, suggesting ongoing development and support.

## Version history (last 5 releases)

### 1.4 — 2026-08-08

Thank you for using Ruler!

In this update, we've made several improvements to enhance your measuring experience:
• UX Enhancements: We’ve polished up the user interface to give you a cleaner and more intuitive experience.
• Improved Digital Ruler and Tape Measure tools
• Added Caliper, Spirit Level, Protractor, Calibration
• Faster app performance and reduced memory usage
• Fixed minor bugs and UI improvements

### 1.3 — 2026-01-21

Bug fixes and performances improvement

### 1.2 — 2024-04-25

- Bug fixes and performance improvements

### 1.1 — 2021-06-12

Improver performance and fix the issue of dark mode.

### 1.0 — 2018-04-06

This app has been updated by Apple to display the Apple Watch app icon.

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| --- | --- | --- | --- |
| [Ruler, Measuring Tape - AR App](https://appshunter.io/ios/app/ruler-measuring-tape-ar-app/id1462163605) | 4.3 (1,027) | Free | Utilities |
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| [Measuring Tape+ Measure AR app](https://appshunter.io/ios/app/measuring-tape-plus-measure-ar-app/id6444381350) | 4.5 (2,020) | Free | Utilities |

## More apps by Bhavinkumar Satashiya

- [Flat Pattern Bend Calculator](https://appshunter.io/ios/app/flat-pattern-bend-calculator/id1361485922)
- [Sheet Bending Calculators](https://appshunter.io/ios/app/sheet-bending-calculators/id1361950390)
- [Welding Calculator for Metal](https://appshunter.io/ios/app/welding-calculator-for-metal/id1366542753)
- [Cable Lugs & Connectors](https://appshunter.io/ios/app/cable-lugs-and-connectors/id1370274265)
- [Gold Exchange Rate](https://appshunter.io/ios/app/gold-exchange-rate/id1372446098)

All apps by Bhavinkumar Satashiya: https://appshunter.io/developer/1361485921

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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 2026-08-13.*