Scala Architectural Scale

Scala Architectural Scale

To measure printed drawings

25 ratings
15 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • April 22, 2016
  • November 24, 2025

Features

Scala Architectural Scale video #1 for iPhone
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About

This app allows users to measure printed architectural and engineering drawings directly on their device. It supports both known and unknown scales, offering fixed and variable scale options for precise measurements. Users can also select secondary units for quick conversions.

Fixed and variable scale measurement
Supports unknown drawing scales
Secondary unit conversions (metric, decimal feet, feet/inches)
Adjustable measurement precision
Extensive scale options for architectural, engineering, and metric drawings
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What's New in Scala Architectural Scale

2.2

November 24, 2025

Scala updated for iPhone Air compatibility.

1

In-App Purchases

$2.99

Scala Full Version

Full version includes additional 6 Architectural (U.S.), 2 Engineering (U.S.) and 12 Metric scales.

User reviews

Amazing for drafting classes

This app is amazing for up-and-coming drafting students learning how to use different types of scales. I do have a request, though I wish you could move the ruler up and down from the fixed point. This would help get the information you need even know your device isn’t long enough. I know this would eliminate a true measurement, but maybe you could lock the ruler in place. Other than that if your measurements are in range of your device that’s app is amazing!
I highly suggest you buy the premium version as well!!
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Very Useful! Great App

2022 I still use this app daily. I'd still like to see a decimal inch/mechanical scale and a way to enter the variable scale numerically.........2016 As a civil engineer this is a very handy app. Working with arch and civil and mech scales is needed and when you forget one or need one surprised you're covered! The variable scale feature in this app is invaluable!! My wish list would include a full scale decimal inch readout. It's there but you need to read the numbers out of the display. Also a flip direction would help. Then two sliders to measure the delta and shift the 0 point would be helpful.
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Handy tool

The only thing I would like to see in this app is the ability to measure longer dimensions that the 5-1/2” lengths of the iPhone. I was trying to add some measurements and was hoping to be able to pull down the scale on the right side and get 6” or 7” but it seemed that the measurement stopped at 5.5”.
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Dead On Accurate! Highly Recommended!

I use this with my iPad Pro and it is dead on accurate compared to my engineer’s scale. It’s great for making impromptu measurements in the field.

Essential part of my toolkit

This app has become an essential part of my toolkit that I use daily in my practice.

FAQ

How does Scala Architectural Scale measure drawings?

Scala Architectural Scale uses your device's screen to measure printed drawings. You can place your device on the drawing and use fixed scales if you know the drawing's scale, or variable scales to determine and use an unknown scale.

Can Scala Architectural Scale measure drawings with unknown scales?

Yes, Scala Architectural Scale features a variable scale mode. You can slide your finger on the variable scale to match a known element on the drawing, lock it, and then use it to measure other elements.

What types of scales does Scala Architectural Scale support?

Scala Architectural Scale supports a wide range of fixed and variable scales for architectural, engineering, and metric drawings. The free version includes many common scales, with the full version offering even more options.

Does Scala Architectural Scale offer unit conversions?

Yes, Scala Architectural Scale allows you to choose secondary units for display, enabling quick conversions between metric, decimal feet, and feet and inches while measuring.

Is Scala Architectural Scale accurate?

The app allows you to control the precision of the measurement units, contributing to accurate readings. Users have rated it highly, with an average of 4.6 stars from 25 ratings.

What devices is Scala Architectural Scale available on?

Scala Architectural Scale is available on iPhone, iPad, and iPod devices, making it accessible for a wide range of Apple users.

When was Scala Architectural Scale last updated?

The latest version of Scala Architectural Scale is 2.2, and it was last updated on November 24, 2025, indicating recent development and support.

What is the age rating for Scala Architectural Scale?

Scala Architectural Scale has an age rating of 4+, making it suitable for a broad audience of users.