# Scales HD

> Digital architectural and engineering scale ruler with measurement tools. (iPhone/iPad app by Marcelo Mejia Cobo.)

- Source: https://appshunter.io/ios/app/scales-hd/id418843481 (this page in markdown: same URL + `.md`)
- Developer: [Marcelo Mejia Cobo](https://appshunter.io/developer/365496933)
- Category: Utilities, Productivity
- Price: $2.99
- Rating: 5.00/5 from 3 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 6.0 · 71 MB
- Languages: American English
- Released: 2011-02-11
- Data updated: 2026-07-18
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/scales-hd/id418843481/reviews.md

## What is Scales HD?

Scales HD (Now for iPhone 6 Plus, iPhone 6, iPhone 5, iPhone 5s, iPhone 5c and iPod Touch 5G)
The Best Architectural and Engineering Scale Ruler App on iTunes! 

• Architectural US Scales:
1" = 1', 3/4" = 1', 1/2" = 1', 3/8" = 1', 1/4" = 1', 1/8" = 1'
3" = 1', 1 1/2 = 1', 3/16" = 1', 3/32" = 1', 1/16" = 1', 1/32" = 1'

• Engineering US Scales:
1" = 1', 1" = 10', 1" = 20', 1" = 30'
1" = 40', 1" = 50', 1" = 60', 1" = 100'

• Metric SI Scales:
1:100, 1:50, 1:20, 1:10, 1:5, 1:2.5
1:1000, 1:5000, 1:250, 1:200, 1:125, 1:75

• Tools:
Boards (SI - US)
Tape (SI - US)
Spirit Level (With Custom Angle Calibration)

• Options:
Flip Scales
Lock Scroll ability
Iphone edge or screen reference distance for zero value
Inverse color for Engineering Scales, Boards and Tape Measure
Spirit Level Lock movement and angle Calibration for zero value

• Extras:
Music / iPod Library control (Previous / Next / Play / Pause) without leaving Scales HD App

## Key features

- Architectural US Scales
- Engineering US Scales
- Metric SI Scales
- Tape Measure Tool
- Spirit Level Tool
- Flip Scales Option
- Music Control

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/scales-hd/id418843481/reviews.md

### 5/5 — Great App. Good support

*2016-11-10, version 1.0.1*

I had previously written a warning review and have since spoken with the creator of the application.

You need to be very careful that they expanded zoom feature is turned off on your iPhone or else the scales will not be to scale.

To change this you have to go to settings, display and brightness, display zoom, and make sure it is set on standard. Otherwise your scales will not be to scale!

Thank you to the creator for a very early phone call and explanation of this future.

### 5/5 — Update worked thanks!!!

*2014-10-29, version 1.0.1*

Great job!

### 3/5 — Power Engr

*2013-09-13*

This is a useful app. Would be nice to know why and what the 2 red lines can be used for. Their almost an inch apart. Please include in the next version a tutorial on using the tape measure and other features of the app.

## Frequently asked questions about Scales HD

### What scales are available in Scales HD?

Scales HD offers a comprehensive range of Architectural US scales (e.g., 1"=1'), Engineering US scales (e.g., 1"=10'), and Metric SI scales (e.g., 1:100).

### Does Scales HD include any additional tools?

Yes, Scales HD includes a Tape Measure tool (SI and US) and a Spirit Level with custom angle calibration, allowing for precise measurements and leveling.

### Can I control music playback within Scales HD?

Yes, Scales HD allows you to control your Music/iPod Library, including play, pause, and skipping to the next or previous track, without leaving the app.

### What devices is Scales HD compatible with?

Scales HD is designed for iPhone 6 Plus, iPhone 6, iPhone 5, iPhone 5s, iPhone 5c, and iPod Touch 5G. It is available on iPhone and iPod.

### How often is Scales HD updated?

The latest version, 1.0.1, was released on October 29, 2014. While updates have not been frequent recently, the app has remained stable for its supported devices.

### What is the price of Scales HD?

Scales HD is a paid application, available for $2.99. There are no in-app purchases or advertisements.

### What is the age rating for Scales HD?

Scales HD has an age rating of 4+, making it suitable for a wide range of users, including younger individuals who may be learning about architectural or engineering concepts.

### Does Scales HD have ads?

No, Scales HD does not contain advertisements. It is a paid app that offers an ad-free experience for its users.

## Version history (last 2 releases)

### 1.0.1 — 2014-10-29

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

Added iPod Touch (5th generation), iPhone 5, iPhone 5s, iPhone 5c, iPhone 6 and iPhone 6 Plus compatibility.
Removed user interface "glitches" caused by iOS 7 upgrade.
Spirt level set angle option with one click only.

### 1.0 — 2011-02-11

No release notes.

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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 2026-07-18.*