# Height Ruler (Barometer) — Measure height with your phone

> Measures object height using device barometer and air pressure changes. (iPhone/iPad app by Wern Jie Lim.)

- Source: https://appshunter.io/ios/app/height-ruler-barometer/id1048420896 (this page in markdown: same URL + `.md`)
- Developer: [Wern Jie Lim](https://appshunter.io/developer/1032934247)
- Category: Utilities, Entertainment
- Price: Free
- Rating: 2.20/5 from 10 App Store ratings · 14 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 14 MB
- Languages: English
- Released: 2016-01-06
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/height-ruler-barometer/id1048420896/reviews.md

## What is Height Ruler (Barometer)?

Height Ruler is an app which uses your device's barometer to detect air pressure changes and calculates an object's height.

IMPORTANT! Please check if your device is supported before downloading.

With Height Ruler, you can easily measure anything. For example, to measure your height, just place your phone on the floor, then on your head and back to the floor and this app will do the rest. Then, you will get your height in meters or feet and inches! 

***Please note that you should disable silent mode and turn up the volume to be able to hear audible feedback of whether the measurement is complete. 

***Do minimise movements when measuring as doing so would disturb the air pressure and thus yield inaccurate results. 

*Developed by Wern Jie, 16.

Features:
  •  Works with just your device.
  •  Easy to follow instructions.
  •  Measures height to a maximum accuracy of ± 8cm (± 3 inches).

Supported devices:
  •  iPhone 6 or later, except iPhone SE
  •  iPad Air 2 and iPad Mini 4 or later
  •  All iPad Pro models

If you find any problems or want to ask questions, feel free to contact me via email at lwjdev@gmail.com.

## Key features

- Measures height using barometer
- Calculates height from air pressure
- Provides results in meters or feet/inches
- Easy-to-follow instructions
- Works with just your device

## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/height-ruler-barometer/id1048420896/reviews.md

### 1/5 — DOES NOT WORK

*2021-11-17, version 1.0.2*

I tried to measure my height 5 times WITH NO SUCCESS! DELETE THIS APP, IT’S GARBAGE!!

### 1/5 — Disappointed

*2021-04-04*

I found this app by searching up how I can measure my self so I was pretty happy about that though later realising that it does not work. It claimed that I was 4’7 which I know that I am not, but I still had faith in it so I tried again. Yet another failure it said I was 5’0 and I know I’m at least 5’4 and the fact that it changed it measurement of me so drastically is not good at all.
Don’t get this app. I normally don’t care if an app is bad so I never write reviews but this is just sad.

**Developer response:** Hi there, the accuracy of the measurement is written on the final measurement itself, and the app appears to be just as accurate as it usually is. It can is usually be within about +/- 6' for human heights when standing as still as possible, and +/- 3' for immobile objects like a table, reason being it is measuring height using on the surrounding air pressure, and slight movements will disrupt the air pressure.

The app can thus measure disruptions in air pressure due to movement and can provide you with an 'accuracy'. You can always use that as a guide as to how accurate your measurement will be - this is always lower the more stable your device gets. 

The best possible scenario is a measurement within 3' for a completely immobile object in a room with minimal air flow (e.g. all fans off), like the height of the table. Try that, and you should get very accurate results. For human heights, because your phone may be moving around slightly as it's not easy to keep it still on your head, the accuracy will be lower.

Hope this helps!

### 3/5 — not bad

*2021-01-05*

i decided to test what the app thought my height was.. im 5’11 and the app thought i was 6’5.. im honestly not complaining, id love to be 6’5 lol

### 4/5 — Best app for measuring my height

*2020-10-25, version 1.0.2*

Okay so at first it said I was 4 feet but then I did it again and it said I was 4 10 so could use some improvements but the app worked pretty good

### 1/5 — Crashes

*2020-08-11*

Still crashes

### 1/5 — It’s don’t work

*2020-08-07, version 1.0.2*

First the instructions are confusing. Second of it does work. Third of It was so not us full I could have just got a Measuring tape. Finally I don’t Recommend this. Thank you! Love-customer

### 5/5 — It works!

*2020-07-31*

Stand your device up, don’t lie it down.

### 1/5 — Um 😐

*2020-07-15*

Crashes still

**Developer response:** Hi there,

I'm sorry for the experience you encountered. Can you please send me an email from within the app with a more detailed description of the issue? This will help diagnose and more quickly resolve the bug.

Thank you!

- Wern Jie

### 5/5 — Wow

*2020-03-13, version 1.0.2*

This actually worked.. thanks

### 4/5 — Quite good

*2020-02-10*

So i downloaded a 30 day fitness app and it needed my height so i looked how to mesure without measuring tape and it reccomended this app amd at first instruction was not that clear but i figured it out then it saod my height was 4'11 then i mesured me with a tape mesure and i was exactly 4'11 so i am not saying it is deffinetley accurate i am saying it was like really good for me

**Developer response:** Hi there,

Glad you had a great experience! :)

- Wern Jie

## Frequently asked questions about Height Ruler (Barometer)

### How does Height Ruler measure height?

Height Ruler uses your device's built-in barometer to detect changes in air pressure. By taking measurements at different points (e.g., floor and top of an object), it calculates the height based on these pressure variations.

### What devices are supported by Height Ruler?

Height Ruler is supported on iPhone 6 or later (excluding iPhone SE), iPad Air 2, iPad Mini 4 or later, and all iPad Pro models. It is designed for iOS devices.

### What is the accuracy of Height Ruler?

The app aims for a maximum accuracy of ± 8cm (± 3 inches). Minimizing movement during measurement is crucial for achieving the best possible results.

### Does Height Ruler have ads?

No, Height Ruler does not contain advertisements. It is a free application that focuses on its measurement functionality.

### How do I ensure accurate measurements with Height Ruler?

To ensure accuracy, disable silent mode and turn up the volume for audible feedback. It's also important to minimize movements during the measurement process, as this can disturb air pressure readings.

### What is the age rating for Height Ruler?

Height Ruler has an age rating of 4+, making it suitable for a wide range of users. The app's functionality is straightforward and easy to understand.

### When was Height Ruler last updated?

The latest version of Height Ruler, 1.0.2, was last updated on October 30, 2019. The app was initially released on January 6, 2016.

### Where can I get support for Height Ruler?

If you encounter any problems or have questions, you can contact the developer directly via email at lwjdev@gmail.com. The developer is Wern Jie Lim.

## Version history (last 2 releases)

### 1.0.2 — 2019-10-30

- Fixed an issue where the app crashes on iOS 13. Sorry for any inconveniences caused.
- Fixed some unit conversion issues. Hopefully.

### 1.0.1 — 2016-01-06

This update is signed with Apple’s latest signing certificate. No new features are included.

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## More apps by Wern Jie Lim

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All apps by Wern Jie Lim: https://appshunter.io/developer/1032934247

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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 2026-06-10.*